Postcode,In Use?,Latitude,Longitude,Easting,Northing,Grid Ref,Introduced,Terminated,Parish,Altitude,Country,Last Updated,Quality,LSOA Code,LSOA Name,LSOA Code 2021,LSOA Name 2021
AL6 0PG,Yes,51.843762,-0.200329,524074,217660,TL240176,1990-02-01,,Codicote,109,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 0PQ,Yes,51.844294,-0.199800,524109,217720,TL241177,1990-02-01,,Codicote,112,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 0QA,Yes,51.845568,-0.199023,524159,217863,TL241178,1980-01-01,,Codicote,120,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9GP,Yes,51.841785,-0.224651,522404,217399,TL224173,2015-09-01,,Codicote,79,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9GQ,Yes,51.860694,-0.212710,523175,219522,TL231195,2019-04-01,,Codicote,132,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9GR,Yes,51.851948,-0.205201,523716,218562,TL237185,2019-06-01,,Codicote,125,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9NF,Yes,51.839736,-0.214629,523100,217188,TL230171,1980-01-01,,Codicote,76,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023968,Welwyn Hatfield 002B,E01023627,Welwyn Hatfield 002B
AL6 9SD,Yes,51.840705,-0.210932,523352,217302,TL233173,1980-01-01,,Codicote,112,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SF,Yes,51.841830,-0.208652,523506,217431,TL235174,1980-01-01,,Codicote,112,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SG,Yes,51.845201,-0.207371,523585,217808,TL235178,1980-01-01,,Codicote,118,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SH,Yes,51.846294,-0.205368,523720,217933,TL237179,1980-01-01,,Codicote,124,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SL,No,51.845395,-0.201847,523965,217839,TL239178,1980-01-01,2005-04-01,Codicote,121,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SN,Yes,51.845206,-0.201825,523967,217818,TL239178,1980-01-01,,Codicote,120,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SP,Yes,51.845570,-0.200374,524066,217861,TL240178,1980-01-01,,Codicote,123,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SR,No,51.845068,-0.202775,523902,217801,TL239178,1980-01-01,1998-06-01,Codicote,121,England,2025-09-16,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SS,Yes,51.846870,-0.201294,523999,218004,TL239180,1980-01-01,,Codicote,125,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9ST,Yes,51.848375,-0.202686,523899,218169,TL238181,1980-01-01,,Codicote,124,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SU,Yes,51.848982,-0.201196,524000,218239,TL239182,1980-01-01,,Codicote,125,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SW,Yes,51.845969,-0.201171,524010,217904,TL240179,1980-01-01,,Codicote,122,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SX,Yes,51.848895,-0.204321,523785,218224,TL237182,1980-01-01,,Codicote,123,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SY,Yes,51.851773,-0.203204,523854,218546,TL238185,1980-01-01,,Codicote,129,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9SZ,Yes,51.850584,-0.203658,523826,218413,TL238184,1980-01-01,,Codicote,126,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9TA,Yes,51.853971,-0.203465,523830,218790,TL238187,1980-01-01,,Codicote,130,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9TJ,Yes,51.854202,-0.213316,523151,218799,TL231187,2003-03-01,,Codicote,124,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9TY,Yes,51.843174,-0.227297,522218,217549,TL222175,1980-01-01,,Codicote,82,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9UA,Yes,51.848543,-0.220814,522650,218157,TL226181,1980-01-01,,Codicote,104,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9UB,Yes,51.855541,-0.213248,523152,218948,TL231189,1980-01-01,,Codicote,125,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9UD,Yes,51.855213,-0.211214,523293,218915,TL232189,1980-01-01,,Codicote,126,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9UE,Yes,51.858628,-0.217003,522885,219285,TL228192,1980-01-01,,Codicote,126,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9UF,Yes,51.858491,-0.206814,523587,219287,TL235192,1980-01-01,,Codicote,133,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9UG,Yes,51.856001,-0.206260,523632,219011,TL236190,1980-01-01,,Codicote,133,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9UL,No,51.848146,-0.221352,522614,218112,TL226181,1980-01-01,1997-06-01,Codicote,105,England,2025-09-16,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
AL6 9UN,Yes,51.859874,-0.211421,523266,219433,TL232194,2021-04-01,,Codicote,132,England,2025-09-16,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG2 8DU,Yes,51.881512,-0.192778,524490,221871,TL244218,1980-01-01,,Knebworth,93,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG2 8DX,No,51.872748,-0.190050,524702,220901,TL247209,1995-01-01,1996-06-01,Knebworth,109,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6AA,Yes,51.864262,-0.180325,525395,219974,TL253199,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AB,Yes,51.868126,-0.186546,524956,220393,TL249203,1987-04-01,,Knebworth,102,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AD,Yes,51.864955,-0.179179,525472,220053,TL254200,1980-01-01,,Knebworth,96,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AE,Yes,51.865674,-0.178598,525510,220134,TL255201,1980-01-01,,Knebworth,93,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AF,Yes,51.866416,-0.175358,525731,220222,TL257202,1980-01-01,,Knebworth,94,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6AG,Yes,51.868346,-0.176325,525659,220435,TL256204,1980-01-01,,Knebworth,87,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6AH,Yes,51.867204,-0.182138,525262,220298,TL252202,1980-01-01,,Knebworth,90,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AJ,Yes,51.867843,-0.180413,525379,220372,TL253203,1980-01-01,,Knebworth,90,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AL,Yes,51.868380,-0.187262,524906,220420,TL249204,1987-04-01,,Knebworth,104,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AN,Yes,51.867352,-0.184718,525084,220310,TL250203,1980-01-01,,Knebworth,95,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AP,Yes,51.866372,-0.184772,525083,220201,TL250202,1980-01-01,,Knebworth,93,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AQ,Yes,51.867662,-0.179796,525422,220353,TL254203,1980-01-01,,Knebworth,89,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AR,Yes,51.868149,-0.185121,525054,220398,TL250203,2001-06-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AS,Yes,51.867449,-0.185760,525012,220319,TL250203,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AT,Yes,51.866368,-0.187430,524900,220196,TL248201,1980-01-01,,Knebworth,100,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AU,Yes,51.865599,-0.187127,524923,220111,TL249201,1980-01-01,,Knebworth,97,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AW,Yes,51.868241,-0.184101,525124,220410,TL251204,1980-01-01,,Knebworth,97,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6AX,Yes,51.864443,-0.187929,524871,219981,TL248199,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6AY,Yes,51.862943,-0.189819,524745,219811,TL247198,1980-01-01,,Knebworth,103,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6AZ,Yes,51.864783,-0.188452,524834,220018,TL248200,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6BA,Yes,51.865942,-0.190120,524716,220144,TL247201,1980-01-01,,Knebworth,105,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6BB,Yes,51.865755,-0.187919,524868,220127,TL248201,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6BD,Yes,51.865505,-0.188598,524822,220098,TL248200,1980-01-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6BE,Yes,51.863866,-0.189026,524797,219915,TL247199,1980-01-01,,Knebworth,100,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6BF,No,51.865744,-0.182488,525242,220135,TL252201,2001-06-01,2005-10-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6BG,Yes,51.863763,-0.190483,524697,219901,TL246199,1980-01-01,,Knebworth,102,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6BH,Yes,51.863943,-0.187005,524936,219927,TL249199,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6BJ,Yes,51.862730,-0.186501,524974,219793,TL249197,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6BL,Yes,51.865424,-0.190373,524700,220086,TL246200,1980-01-01,,Knebworth,104,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6BN,Yes,51.863203,-0.187978,524871,219843,TL248198,1980-01-01,,Knebworth,100,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6BP,Yes,51.861441,-0.184520,525114,219653,TL251196,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6BQ,Yes,51.864774,-0.191938,524594,220011,TL245200,1980-01-01,,Knebworth,102,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6BS,Yes,51.860641,-0.184567,525113,219564,TL251195,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6BT,Yes,51.865296,-0.193748,524468,220066,TL244200,1980-01-01,,Knebworth,105,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6BU,Yes,51.864442,-0.192547,524553,219973,TL245199,1980-01-01,,Knebworth,102,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6BW,Yes,51.862837,-0.187601,524898,219803,TL248198,1980-01-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6BX,Yes,51.864631,-0.190201,524714,219998,TL247199,1980-01-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6BY,Yes,51.865173,-0.190993,524658,220057,TL246200,1980-01-01,,Knebworth,102,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6BZ,Yes,51.865118,-0.191474,524625,220050,TL246200,1980-01-01,,Knebworth,102,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6DA,Yes,51.865082,-0.183909,525146,220059,TL251200,1980-01-01,,Knebworth,95,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DB,Yes,51.865295,-0.185454,525039,220080,TL250200,1980-01-01,,Knebworth,95,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DD,Yes,51.866079,-0.182082,525269,220173,TL252201,1994-12-01,,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DE,Yes,51.863147,-0.184960,525079,219842,TL250198,1980-01-01,,Knebworth,97,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DF,Yes,51.866112,-0.185392,525041,220171,TL250201,1980-01-01,,Knebworth,94,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DG,Yes,51.862068,-0.187879,524881,219717,TL248197,1980-01-01,,Knebworth,100,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DH,Yes,51.862084,-0.191843,524608,219712,TL246197,1980-01-01,,Knebworth,108,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6DJ,Yes,51.862764,-0.192193,524582,219787,TL245197,1980-01-01,,Knebworth,109,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6DL,No,51.865744,-0.182488,525242,220135,TL252201,2001-06-01,2001-12-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DN,Yes,51.861343,-0.190987,524669,219631,TL246196,1980-01-01,,Knebworth,105,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6DP,Yes,51.861638,-0.189160,524794,219667,TL247196,1980-01-01,,Knebworth,101,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6DQ,Yes,51.862500,-0.190258,524716,219761,TL247197,1980-01-01,,Knebworth,104,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6DR,Yes,51.864937,-0.184379,525114,220042,TL251200,2004-11-01,,Knebworth,95,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DS,Yes,51.861223,-0.187898,524882,219623,TL248196,1980-01-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6DT,Yes,51.860177,-0.191179,524659,219501,TL246195,1984-10-01,,Knebworth,110,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6DU,Yes,51.860288,-0.189039,524806,219517,TL248195,1980-01-01,,Knebworth,103,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6DW,No,51.866193,-0.190676,524677,220171,TL246201,1983-01-01,2013-12-01,Knebworth,108,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6DX,Yes,51.860441,-0.190239,524723,219532,TL247195,1990-02-01,,Knebworth,106,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6DY,Yes,51.866652,-0.188334,524837,220226,TL248202,2008-05-01,,Knebworth,101,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6DZ,Yes,51.860024,-0.187699,524899,219490,TL248194,1980-01-01,,Knebworth,100,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6EA,Yes,51.859875,-0.191452,524641,219467,TL246194,1990-02-01,,Knebworth,112,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6EB,Yes,51.860013,-0.186393,524989,219491,TL249194,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6ED,Yes,51.861057,-0.186482,524980,219607,TL249196,1980-01-01,,Knebworth,97,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6EE,Yes,51.863979,-0.182341,525257,219939,TL252199,2016-05-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EF,No,51.861021,-0.187616,524902,219601,TL249196,1995-01-01,1995-12-01,Knebworth,98,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6EG,No,51.865469,-0.184532,525102,220101,TL251201,1991-09-01,1992-12-01,Knebworth,94,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EH,Yes,51.866209,-0.192288,524566,220170,TL245201,1995-12-01,,Knebworth,110,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6EJ,No,51.865744,-0.182488,525242,220135,TL252201,1993-08-01,2001-11-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EL,Yes,51.866259,-0.182670,525228,220192,TL252201,2008-06-01,,Knebworth,91,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EN,Yes,51.867664,-0.188046,524854,220339,TL248203,2009-02-01,,Knebworth,104,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6EP,Yes,51.865744,-0.182531,525239,220135,TL252201,2000-12-01,,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EQ,Yes,51.866194,-0.190691,524676,220171,TL246201,2016-06-01,,Knebworth,106,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6ER,Yes,51.865785,-0.180540,525376,220143,TL253201,1980-01-01,,Knebworth,93,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ES,No,51.865730,-0.182750,525224,220133,TL252201,1980-01-01,2016-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ET,No,51.865829,-0.182789,525221,220144,TL252201,1980-01-01,2016-01-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EU,Yes,51.865957,-0.184106,525130,220156,TL251201,2020-09-01,,Knebworth,94,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EW,Yes,51.867082,-0.187619,524885,220275,TL248202,2020-11-01,,Knebworth,101,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6EX,Yes,51.866178,-0.183254,525188,220182,TL251201,1980-01-01,,Knebworth,91,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EY,Yes,51.865774,-0.183300,525186,220137,TL251201,1980-01-01,,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6EZ,No,51.866070,-0.183230,525190,220170,TL251201,1980-01-01,1998-12-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6FQ,Yes,51.866522,-0.188063,524856,220212,TL248202,2021-02-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6FR,Yes,51.881401,-0.191417,524584,221861,TL245218,2024-09-01,,Knebworth,95,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6GR,No,51.865744,-0.182488,525242,220135,TL252201,2001-12-01,2002-08-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HA,No,51.866115,-0.183809,525150,220174,TL251201,1980-01-01,2018-06-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HB,Yes,51.863780,-0.183438,525182,219915,TL251199,1980-01-01,,Knebworth,95,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HD,No,51.864051,-0.182338,525257,219947,TL252199,1980-01-01,2015-09-01,Knebworth,95,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HE,Yes,51.863502,-0.182346,525258,219886,TL252198,1980-01-01,,Knebworth,96,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HF,Yes,51.862989,-0.182875,525223,219828,TL252198,1980-01-01,,Knebworth,97,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HG,Yes,51.861025,-0.183186,525207,219609,TL252196,1980-01-01,,Knebworth,101,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HH,Yes,51.860614,-0.183972,525154,219562,TL251195,1980-01-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HJ,Yes,51.861145,-0.183980,525152,219621,TL251196,1980-01-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HL,Yes,51.866482,-0.187193,524916,220209,TL249202,2021-11-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6HP,Yes,51.869819,-0.187306,524899,220580,TL248205,1990-02-01,,Knebworth,107,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6HQ,No,51.872119,-0.211240,523245,220795,TL232207,2000-12-01,2020-09-01,Knebworth,127,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6JQ,No,51.860502,-0.183091,525215,219551,TL252195,1994-12-01,1998-12-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6NA,Yes,51.872275,-0.186219,524967,220855,TL249208,1980-01-01,,Knebworth,109,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6ND,Yes,51.870010,-0.189157,524771,220598,TL247205,1988-03-01,,Knebworth,113,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6NE,No,51.867401,-0.193169,524502,220301,TL245203,1993-08-01,1995-12-01,Knebworth,117,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6NH,No,51.865744,-0.182488,525242,220135,TL252201,1994-12-01,2013-05-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6NL,Yes,51.869858,-0.191546,524607,220577,TL246205,1980-01-01,,Knebworth,120,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6NN,Yes,51.871335,-0.186460,524953,220750,TL249207,1980-01-01,,Knebworth,108,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6NP,Yes,51.871557,-0.183953,525125,220779,TL251207,1980-01-01,,Knebworth,102,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6NQ,No,51.867401,-0.193169,524502,220301,TL245203,1991-01-01,1994-05-01,Knebworth,117,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6NR,No,51.865744,-0.182488,525242,220135,TL252201,1991-01-01,2008-06-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6NS,Yes,51.869873,-0.183193,525182,220593,TL251205,1980-01-01,,Knebworth,98,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6NU,Yes,51.869427,-0.186377,524964,220538,TL249205,1980-01-01,,Knebworth,104,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6NX,Yes,51.868075,-0.185546,525025,220389,TL250203,2001-06-01,,Knebworth,99,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6PA,No,51.866480,-0.191754,524602,220201,TL246202,1983-01-01,1990-12-01,Knebworth,111,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6PB,Yes,51.867501,-0.187980,524859,220321,TL248203,1980-01-01,,Knebworth,104,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PD,Yes,51.866682,-0.189117,524783,220228,TL247202,1980-01-01,,Knebworth,105,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PE,Yes,51.867054,-0.188768,524806,220270,TL248202,1980-01-01,,Knebworth,104,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PF,Yes,51.867068,-0.189101,524783,220271,TL247202,1980-01-01,,Knebworth,106,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PG,Yes,51.868340,-0.189326,524764,220412,TL247204,1980-01-01,,Knebworth,112,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PH,Yes,51.866907,-0.192071,524579,220248,TL245202,1980-01-01,,Knebworth,114,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6PJ,No,51.867051,-0.187954,524862,220271,TL248202,1988-03-01,2018-09-01,Knebworth,102,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PL,Yes,51.865969,-0.194244,524432,220140,TL244201,1980-01-01,,Knebworth,111,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6PN,No,51.866524,-0.194657,524402,220201,TL244202,1990-02-01,1991-12-01,Knebworth,115,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PP,Yes,51.867235,-0.202312,523873,220267,TL238202,1980-01-01,,Knebworth,133,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6PR,Yes,51.868236,-0.207807,523492,220369,TL234203,1980-01-01,,Knebworth,129,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6PS,Yes,51.868848,-0.209046,523405,220435,TL234204,1980-01-01,,Knebworth,129,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6PT,Yes,51.872006,-0.210373,523305,220784,TL233207,1980-01-01,,Knebworth,124,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PU,Yes,51.867769,-0.190816,524663,220346,TL246203,1983-03-01,,Knebworth,116,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PW,Yes,51.866548,-0.195034,524376,220203,TL243202,1980-01-01,,Knebworth,115,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6PX,Yes,51.882127,-0.204799,523661,221919,TL236219,2010-02-01,,Knebworth,103,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6PY,Yes,51.872800,-0.214700,523005,220865,TL230208,1980-01-01,,Knebworth,131,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6PZ,No,51.865744,-0.182488,525242,220135,TL252201,1994-05-01,2013-10-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6QA,Yes,51.868891,-0.213053,523129,220433,TL231204,1980-01-01,,Knebworth,130,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QB,Yes,51.868280,-0.214879,523005,220362,TL230203,1980-01-01,,Knebworth,131,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QD,Yes,51.868678,-0.215618,522953,220405,TL229204,1980-01-01,,Knebworth,130,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QE,Yes,51.867116,-0.216377,522905,220230,TL229202,1980-01-01,,Knebworth,127,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QF,Yes,51.866700,-0.216844,522874,220183,TL228201,1980-01-01,,Knebworth,126,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QG,Yes,51.865467,-0.219130,522720,220042,TL227200,1980-01-01,,Codicote,125,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QH,Yes,51.865282,-0.220589,522620,220019,TL226200,1980-01-01,,Codicote,125,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QJ,Yes,51.863609,-0.221701,522548,219831,TL225198,1980-01-01,,Codicote,123,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QL,Yes,51.867969,-0.223461,522415,220313,TL224203,1980-01-01,,Codicote,126,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QN,Yes,51.867449,-0.214621,523025,220270,TL230202,1987-04-01,,Knebworth,129,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QQ,No,51.865103,-0.219405,522702,220001,TL227200,1991-09-01,1994-12-01,Codicote,124,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QR,No,51.864226,-0.220892,522602,219901,TL226199,1980-01-01,1983-12-01,Codicote,123,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6QX,Yes,51.863119,-0.177321,525605,219852,TL256198,1980-01-01,,Knebworth,104,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6RF,Yes,51.867001,-0.188203,524845,220265,TL248202,2005-06-01,,Knebworth,103,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023629,North Hertfordshire 015F,E01023629,North Hertfordshire 015F
SG3 6RT,No,51.865744,-0.182488,525242,220135,TL252201,2010-03-01,2013-11-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6SL,Yes,51.869423,-0.213773,523078,220491,TL230204,1996-12-01,,Knebworth,131,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG3 6SY,No,51.865744,-0.182488,525242,220135,TL252201,2011-03-01,2012-06-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6TH,No,51.865744,-0.182488,525242,220135,TL252201,2009-12-01,2013-01-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6TT,No,51.860736,-0.183125,525212,219577,TL252195,1996-06-01,1998-06-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6TU,No,51.860502,-0.183091,525215,219551,TL252195,1996-06-01,1998-12-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6TX,No,51.860502,-0.183091,525215,219551,TL252195,1998-12-01,1999-12-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6TY,No,51.865744,-0.182488,525242,220135,TL252201,2000-12-01,2006-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6TZ,No,51.865744,-0.182488,525242,220135,TL252201,1996-12-01,2003-10-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UA,No,51.865744,-0.182488,525242,220135,TL252201,1996-12-01,2003-09-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UB,No,51.860502,-0.183091,525215,219551,TL252195,1997-12-01,1999-06-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UD,No,51.860502,-0.183091,525215,219551,TL252195,1997-12-01,1999-06-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UE,No,51.865744,-0.182531,525239,220135,TL252201,2017-02-01,2022-10-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UF,No,51.860502,-0.183091,525215,219551,TL252195,1998-12-01,2001-01-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UG,No,51.860502,-0.183091,525215,219551,TL252195,1999-06-01,2001-04-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UJ,No,51.865744,-0.182488,525242,220135,TL252201,1999-12-01,2003-10-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UL,No,51.865744,-0.182488,525242,220135,TL252201,1999-12-01,2015-09-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UN,No,51.860502,-0.183091,525215,219551,TL252195,1999-12-01,2000-06-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UP,No,51.865744,-0.182488,525242,220135,TL252201,2000-06-01,2007-03-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UQ,No,51.865744,-0.182488,525242,220135,TL252201,2009-07-01,2010-08-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UR,No,51.865744,-0.182488,525242,220135,TL252201,2000-06-01,2002-03-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6US,No,51.865744,-0.182531,525239,220135,TL252201,2009-03-01,2019-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UT,No,51.865744,-0.182531,525239,220135,TL252201,2019-12-01,2022-09-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UU,No,51.860502,-0.183091,525215,219551,TL252195,2000-06-01,2001-05-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UW,No,51.860502,-0.183091,525215,219551,TL252195,1999-12-01,2000-11-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UX,No,51.865744,-0.182488,525242,220135,TL252201,2000-06-01,2001-08-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UY,No,51.865744,-0.182488,525242,220135,TL252201,2000-06-01,2001-08-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6UZ,Yes,51.865744,-0.182531,525239,220135,TL252201,2008-12-01,,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WA,No,51.865744,-0.182488,525242,220135,TL252201,2002-06-01,2002-08-01,Knebworth,92,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WB,No,51.865744,-0.182488,525242,220135,TL252201,2002-06-01,2002-08-01,Knebworth,92,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WD,No,51.865744,-0.182488,525242,220135,TL252201,2002-06-01,2006-04-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WE,No,51.865744,-0.182531,525239,220135,TL252201,2002-06-01,2016-04-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WF,No,51.865744,-0.182488,525242,220135,TL252201,2006-08-01,2007-09-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WG,No,51.865744,-0.182488,525242,220135,TL252201,2002-05-01,2003-07-01,Knebworth,92,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WH,No,51.865744,-0.182488,525242,220135,TL252201,2008-05-01,2009-06-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WJ,No,51.865744,-0.182488,525242,220135,TL252201,2008-04-01,2011-05-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WL,No,51.865744,-0.182488,525242,220135,TL252201,2007-11-01,2009-01-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WN,No,51.865744,-0.182488,525242,220135,TL252201,2007-08-01,2010-09-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WP,No,51.865744,-0.182531,525239,220135,TL252201,2007-07-01,2019-07-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WQ,No,51.865744,-0.182488,525242,220135,TL252201,2007-02-01,2007-09-01,Knebworth,92,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WR,No,51.865744,-0.182531,525239,220135,TL252201,2006-10-01,2016-11-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WS,No,51.865744,-0.182488,525242,220135,TL252201,2006-04-01,2007-07-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WT,No,51.865744,-0.182488,525242,220135,TL252201,2006-04-01,2009-05-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WU,No,51.865744,-0.182488,525242,220135,TL252201,2007-04-01,2008-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WW,No,51.865744,-0.182488,525242,220135,TL252201,2005-10-01,2008-12-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WX,No,51.865744,-0.182488,525242,220135,TL252201,2005-10-01,2007-07-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WY,No,51.865744,-0.182488,525242,220135,TL252201,2005-05-01,2005-11-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6WZ,No,51.865744,-0.182488,525242,220135,TL252201,2005-02-01,2007-04-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XB,No,51.865744,-0.182488,525242,220135,TL252201,2008-12-01,2010-01-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XD,No,51.865744,-0.182488,525242,220135,TL252201,2009-08-01,2011-05-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XE,No,51.865744,-0.182488,525242,220135,TL252201,2011-10-01,2013-12-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XF,No,51.865744,-0.182531,525239,220135,TL252201,2011-10-01,2019-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XG,No,51.865744,-0.182488,525242,220135,TL252201,2012-02-01,2012-07-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XH,No,51.865744,-0.182488,525242,220135,TL252201,2012-04-01,2013-05-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XJ,No,51.865744,-0.182488,525242,220135,TL252201,2012-04-01,2013-04-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XL,No,51.865744,-0.182488,525242,220135,TL252201,2012-10-01,2013-09-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XN,No,51.865744,-0.182531,525239,220135,TL252201,2016-12-01,2022-02-01,Knebworth,93,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XQ,No,51.865744,-0.182531,525239,220135,TL252201,2003-10-01,2019-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XW,No,51.865744,-0.182531,525239,220135,TL252201,2020-11-01,2022-08-01,Knebworth,90,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6XZ,No,51.865744,-0.182531,525239,220135,TL252201,2009-11-01,2023-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6YD,No,51.860502,-0.183091,525215,219551,TL252195,2000-06-01,2000-11-01,Knebworth,102,England,2025-09-17,Postcode sector mean (mainly PO Boxes),E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6YF,No,51.865744,-0.182488,525242,220135,TL252201,2000-12-01,2001-08-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6YH,No,51.865744,-0.182488,525242,220135,TL252201,2000-12-01,2006-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6YS,No,51.865744,-0.182488,525242,220135,TL252201,2003-01-01,2014-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6YX,No,51.865744,-0.182531,525239,220135,TL252201,2020-12-01,2021-04-01,Knebworth,90,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6YY,Yes,51.865744,-0.182531,525239,220135,TL252201,2023-05-01,,Knebworth,90,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6YZ,No,51.865744,-0.182531,525239,220135,TL252201,2018-02-01,2021-02-01,Knebworth,90,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZG,No,51.865744,-0.182531,525239,220135,TL252201,2004-07-01,2019-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZH,No,51.865744,-0.182488,525242,220135,TL252201,2004-03-01,2007-04-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZJ,No,51.865744,-0.182488,525242,220135,TL252201,2002-12-01,2004-04-01,Knebworth,92,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZN,No,51.865744,-0.182488,525242,220135,TL252201,2002-11-01,2007-08-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZP,No,51.865744,-0.182488,525242,220135,TL252201,2003-03-01,2006-02-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZQ,No,51.865744,-0.182488,525242,220135,TL252201,2003-01-01,2003-06-01,Knebworth,92,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZR,No,51.865744,-0.182488,525242,220135,TL252201,2003-09-01,2006-01-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZS,No,51.865744,-0.182488,525242,220135,TL252201,2004-01-01,2010-05-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZT,No,51.865744,-0.182488,525242,220135,TL252201,2003-09-01,2006-01-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZU,No,51.865744,-0.182488,525242,220135,TL252201,2003-06-01,2007-07-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZW,No,51.865744,-0.182488,525242,220135,TL252201,2006-12-01,2015-11-01,Knebworth,92,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG3 6ZX,No,51.865744,-0.182488,525242,220135,TL252201,2003-01-01,2003-10-01,Knebworth,92,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023628,North Hertfordshire 015E,E01023628,North Hertfordshire 015E
SG4 8DT,No,51.870822,-0.240969,521202,220601,TL212206,1993-08-01,1995-07-01,Knebworth,135,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8SX,Yes,51.870311,-0.242296,521112,220542,TL211205,1980-01-01,,Knebworth,133,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TA,Yes,51.866250,-0.249135,520652,220079,TL206200,1980-01-01,,Knebworth,121,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TB,Yes,51.870284,-0.238636,521364,220545,TL213205,1980-01-01,,Knebworth,133,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TD,Yes,51.876857,-0.244656,520932,221266,TL209212,1980-01-01,,Knebworth,136,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TE,No,51.870965,-0.232523,521783,220631,TL217206,1980-01-01,2000-06-01,Knebworth,132,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TG,Yes,51.878154,-0.228610,522033,221437,TL220214,1980-01-01,,Knebworth,126,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TH,Yes,51.866994,-0.235148,521613,220185,TL216201,1980-01-01,,Codicote,128,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TJ,Yes,51.858079,-0.234292,521696,219195,TL216191,1980-01-01,,Codicote,115,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TL,No,51.866692,-0.235378,521598,220151,TL215201,1980-01-01,2015-05-01,Codicote,125,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TN,No,51.864423,-0.233956,521702,219901,TL217199,1991-09-01,1992-12-01,Codicote,120,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TP,Yes,51.862592,-0.235393,521608,219695,TL216196,1980-01-01,,Codicote,122,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TQ,Yes,51.870671,-0.230894,521896,220601,TL218206,1980-01-01,,Codicote,134,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TR,Yes,51.864100,-0.229249,522027,219873,TL220198,1980-01-01,,Codicote,125,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TS,Yes,51.860395,-0.230396,521958,219459,TL219194,1980-01-01,,Codicote,113,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8TW,No,51.861748,-0.235513,521602,219601,TL216196,1990-07-01,1991-12-01,Codicote,122,England,2025-09-17,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8WT,Yes,51.870975,-0.232581,521779,220632,TL217206,2000-06-01,,Knebworth,132,England,2025-09-17,Within the building of the matched address closest to the postcode mean,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8WU,No,51.870965,-0.232523,521783,220631,TL217206,2005-06-01,2005-08-01,Knebworth,132,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D
SG4 8WX,No,51.870965,-0.232523,521783,220631,TL217206,2003-04-01,2005-10-01,Knebworth,132,England,2025-09-17,Imputed by ONS by reference to surrounding postcode grid references,E01023627,North Hertfordshire 015D,E01023627,North Hertfordshire 015D