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 SG7 5BS,Yes,51.991669,-0.186653,524606,234132,TL246341,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 5BT,No,51.991967,-0.186758,524598,234165,TL245341,1980-01-01,2005-07-01,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 5BX,Yes,51.994352,-0.189225,524422,234426,TL244344,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023590,North Hertfordshire 004D,E01023590,North Hertfordshire 004D SG7 5BY,Yes,51.994875,-0.188155,524494,234486,TL244344,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023590,North Hertfordshire 004D,E01023590,North Hertfordshire 004D SG7 5BZ,Yes,51.994698,-0.186575,524603,234469,TL246344,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023590,North Hertfordshire 004D,E01023590,North Hertfordshire 004D SG7 5DA,Yes,51.992637,-0.187066,524575,234239,TL245342,2013-07-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 5DB,Yes,51.994486,-0.184457,524749,234449,TL247344,1980-01-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023590,North Hertfordshire 004D,E01023590,North Hertfordshire 004D SG7 5DD,Yes,51.994092,-0.186934,524580,234401,TL245344,1980-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023590,North Hertfordshire 004D,E01023590,North Hertfordshire 004D SG7 5DE,Yes,51.992843,-0.185222,524701,234265,TL247342,1980-01-01,,"North Hertfordshire, unparished area",68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 5DF,Yes,51.992765,-0.185997,524648,234255,TL246342,1983-01-01,,"North Hertfordshire, unparished area",68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 5DG,Yes,51.993530,-0.186607,524604,234339,TL246343,1983-07-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023590,North Hertfordshire 004D,E01023590,North Hertfordshire 004D SG7 5DH,Yes,51.992332,-0.187093,524574,234205,TL245342,1995-07-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 5DQ,No,51.995929,-0.189453,524402,234601,TL244346,1991-09-01,1995-12-01,Bygrave,59,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 5DS,Yes,51.996368,-0.178845,525129,234668,TL251346,1980-01-01,,Bygrave,65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 5FE,Yes,51.991788,-0.186794,524596,234145,TL245341,2017-08-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 5FN,Yes,51.995209,-0.185884,524649,234527,TL246345,2021-10-01,,"North Hertfordshire, unparished area",58,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023590,North Hertfordshire 004D,E01023590,North Hertfordshire 004D SG7 6FP,Yes,51.992328,-0.183320,524833,234211,TL248342,2012-07-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6NN,Yes,51.993375,-0.177728,525214,234337,TL252343,1980-01-01,,Bygrave,68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 6NP,No,51.993131,-0.184060,524780,234299,TL247342,1980-01-01,2005-11-01,"North Hertfordshire, unparished area",68,England,2025-07-24,Approximate to within 50 metres,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6NR,No,51.993099,-0.180828,525002,234301,TL250343,1980-01-01,1995-01-01,Bygrave,68,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 6NS,Yes,51.992352,-0.181411,524964,234217,TL249342,1995-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6NT,Yes,51.992780,-0.183462,524822,234261,TL248342,1980-01-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6NU,Yes,51.992031,-0.183303,524835,234178,TL248341,1980-01-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6NW,Yes,51.993260,-0.181972,524923,234317,TL249343,1990-02-01,,Bygrave,68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 6NX,Yes,51.991356,-0.183258,524840,234103,TL248341,1980-01-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6NY,Yes,51.991919,-0.184196,524774,234164,TL247341,1980-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6NZ,Yes,51.991178,-0.184547,524752,234081,TL247340,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6PA,Yes,51.993354,-0.181050,524986,234329,TL249343,1980-01-01,,Bygrave,68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 6PB,Yes,51.990428,-0.184912,524729,233997,TL247339,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6PF,Yes,51.991445,-0.185541,524683,234109,TL246341,2004-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6PL,Yes,51.991461,-0.186560,524613,234109,TL246341,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6QS,Yes,51.991002,-0.178393,525175,234072,TL251340,1993-01-01,,"North Hertfordshire, unparished area",74,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6QT,Yes,51.991049,-0.176192,525326,234081,TL253340,1993-01-01,,"North Hertfordshire, unparished area",75,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6QZ,Yes,51.993426,-0.172934,525543,234351,TL255343,1980-01-01,,Bygrave,69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 6RA,No,51.992200,-0.180864,525002,234201,TL250342,1980-01-01,1999-12-01,"North Hertfordshire, unparished area",72,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6RS,Yes,51.986881,-0.177657,525237,233615,TL252336,1980-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6RT,Yes,51.989791,-0.173344,525525,233946,TL255339,1984-10-01,,"North Hertfordshire, unparished area",75,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6RU,Yes,51.990853,-0.173418,525517,234064,TL255340,1984-10-01,,"North Hertfordshire, unparished area",73,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6RX,Yes,51.991337,-0.172189,525600,234120,TL255341,1984-10-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6RY,Yes,51.989112,-0.175396,525386,233867,TL253338,1983-03-01,,"North Hertfordshire, unparished area",74,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6RZ,Yes,51.989735,-0.177264,525256,233933,TL252339,1983-03-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6SS,Yes,51.990187,-0.179198,525122,233980,TL251339,1985-04-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6ST,Yes,51.991806,-0.170495,525715,234175,TL257341,1993-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6SU,Yes,51.991632,-0.169701,525770,234157,TL257341,1990-02-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6SY,Yes,51.990778,-0.180179,525053,234044,TL250340,1984-10-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6SZ,Yes,51.990531,-0.171799,525629,234031,TL256340,1984-10-01,,"North Hertfordshire, unparished area",73,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TA,Yes,51.992679,-0.172863,525550,234268,TL255342,1986-07-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TB,Yes,51.992044,-0.172510,525576,234198,TL255341,1986-07-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TD,Yes,51.993004,-0.171786,525623,234306,TL256343,1986-07-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TE,No,51.993013,-0.171800,525622,234307,TL256343,2000-12-01,2004-08-01,"North Hertfordshire, unparished area",69,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TH,Yes,51.992327,-0.171071,525674,234232,TL256342,1986-07-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TJ,Yes,51.990732,-0.169650,525776,234057,TL257340,1987-04-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TL,Yes,51.992161,-0.177181,525255,234203,TL252342,1987-04-01,,"North Hertfordshire, unparished area",73,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6TP,Yes,51.991838,-0.174339,525451,234172,TL254341,1987-04-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TR,Yes,51.992022,-0.173996,525474,234193,TL254341,1987-04-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6TS,Yes,51.992132,-0.179367,525105,234196,TL251341,1990-02-01,,"North Hertfordshire, unparished area",73,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6TW,Yes,51.992232,-0.175357,525380,234214,TL253342,1987-04-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023588,North Hertfordshire 004B,E01023588,North Hertfordshire 004B SG7 6WA,Yes,51.990232,-0.174535,525442,233993,TL254339,1999-12-01,,"North Hertfordshire, unparished area",75,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6WD,No,51.990241,-0.174535,525442,233994,TL254339,2001-12-01,2002-03-01,"North Hertfordshire, unparished area",75,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6WE,No,51.990241,-0.174535,525442,233994,TL254339,2001-06-01,2002-07-01,"North Hertfordshire, unparished area",75,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6WT,No,51.990241,-0.174535,525442,233994,TL254339,2001-06-01,2002-03-01,"North Hertfordshire, unparished area",75,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6WW,No,51.990241,-0.174535,525442,233994,TL254339,2003-01-01,2004-04-01,"North Hertfordshire, unparished area",75,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023587,North Hertfordshire 004A,E01023587,North Hertfordshire 004A SG7 6XL,Yes,51.993440,-0.180202,525044,234340,TL250343,1998-12-01,,Bygrave,67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 6XQ,No,51.993422,-0.180203,525044,234338,TL250343,2000-12-01,2001-11-01,Bygrave,67,England,2025-07-24,Imputed by ONS by reference to surrounding postcode grid references,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A SG7 6XT,Yes,51.993208,-0.182688,524874,234310,TL248343,1999-06-01,,Bygrave,67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023585,North Hertfordshire 005A,E01023585,North Hertfordshire 005A