Postcode,In Use?,Latitude,Longitude,Easting,Northing,Grid Ref,Introduced,Terminated,Altitude,Population,Households,Nearest Station,Distance To Station (KM),Built Up Area,Built Up Area Sub-Division,Water Company,Sewage Company,District,Ward,County Electoral Division
AL6 0PG,Yes,51.843762,-0.200329,524074,217660,TL240176,2/1/1990 12:00:00 AM,,109,29,15,Welwyn North,2.3,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 0PQ,Yes,51.844294,-0.199800,524109,217720,TL241177,2/1/1990 12:00:00 AM,,112,46,15,Welwyn North,2.4,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 0QA,Yes,51.845561,-0.199047,524157,217862,TL241178,1/1/1980 12:00:00 AM,,120,23,7,Welwyn North,2.5,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9GP,Yes,51.841785,-0.224651,522404,217399,TL224173,9/1/2015 12:00:00 AM,,79,,,Welwyn North,3.0,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9GQ,Yes,51.860694,-0.212710,523175,219522,TL231195,4/1/2019 12:00:00 AM,,132,,,Knebworth,1.9,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9GR,Yes,51.851948,-0.205201,523716,218562,TL237185,6/1/2019 12:00:00 AM,,125,,,Knebworth,2.1,Welwyn Garden City,Oaklands,,,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9NF,Yes,51.839736,-0.214629,523100,217188,TL230171,1/1/1980 12:00:00 AM,,76,,,Welwyn North,2.4,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SD,Yes,51.840698,-0.210956,523350,217301,TL233173,1/1/1980 12:00:00 AM,,112,3,1,Welwyn North,2.3,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SF,Yes,51.841830,-0.208652,523506,217431,TL235174,1/1/1980 12:00:00 AM,,112,22,7,Welwyn North,2.3,,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SG,Yes,51.845201,-0.207371,523585,217808,TL235178,1/1/1980 12:00:00 AM,,118,16,6,Welwyn North,2.6,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SH,Yes,51.846294,-0.205368,523720,217933,TL237179,1/1/1980 12:00:00 AM,,124,16,7,Knebworth,2.6,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SL,No,51.845388,-0.201871,523963,217838,TL239178,1/1/1980 12:00:00 AM,4/1/2005 12:00:00 AM,121,,,Welwyn North,2.5,Welwyn Garden City,Oaklands,,,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SN,Yes,51.845627,-0.202331,523931,217864,TL239178,1/1/1980 12:00:00 AM,,120,79,4,Welwyn North,2.6,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SP,Yes,51.845570,-0.200373,524066,217861,TL240178,1/1/1980 12:00:00 AM,,123,20,13,Welwyn North,2.5,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SR,No,51.845061,-0.202798,523900,217800,TL239178,1/1/1980 12:00:00 AM,6/1/1998 12:00:00 AM,121,,,Welwyn North,2.5,Welwyn Garden City,Oaklands,,,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SS,Yes,51.846870,-0.201294,523999,218004,TL239180,1/1/1980 12:00:00 AM,,125,11,6,Knebworth,2.4,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9ST,Yes,51.848369,-0.202710,523897,218168,TL238181,1/1/1980 12:00:00 AM,,124,48,15,Knebworth,2.3,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SU,Yes,51.848975,-0.201219,523998,218238,TL239182,1/1/1980 12:00:00 AM,,125,53,19,Knebworth,2.2,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SW,Yes,51.845962,-0.201194,524008,217903,TL240179,1/1/1980 12:00:00 AM,,122,51,28,Knebworth,2.5,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SX,Yes,51.848895,-0.204321,523785,218224,TL237182,1/1/1980 12:00:00 AM,,123,2,1,Knebworth,2.3,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SY,Yes,51.851766,-0.203228,523852,218545,TL238185,1/1/1980 12:00:00 AM,,129,35,14,Knebworth,2.0,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9SZ,Yes,51.850584,-0.203658,523826,218413,TL238184,1/1/1980 12:00:00 AM,,126,12,6,Knebworth,2.1,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9TA,Yes,51.853964,-0.203489,523828,218789,TL238187,1/1/1980 12:00:00 AM,,130,13,4,Knebworth,1.8,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9TJ,Yes,51.854195,-0.213339,523149,218798,TL231187,3/1/2003 12:00:00 AM,,124,14,3,Knebworth,2.3,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9TY,Yes,51.843174,-0.227297,522218,217549,TL222175,1/1/1980 12:00:00 AM,,82,47,19,Welwyn North,3.3,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9UA,Yes,51.848138,-0.221381,522612,218111,TL226181,1/1/1980 12:00:00 AM,,104,48,16,Knebworth,3.1,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9UB,Yes,51.855541,-0.213248,523152,218948,TL231189,1/1/1980 12:00:00 AM,,125,26,10,Knebworth,2.2,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9UD,Yes,51.855213,-0.211214,523293,218915,TL232189,1/1/1980 12:00:00 AM,,126,2,1,Knebworth,2.1,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9UE,Yes,51.858621,-0.217027,522883,219284,TL228192,1/1/1980 12:00:00 AM,,126,18,5,Knebworth,2.2,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9UF,Yes,51.858491,-0.206814,523587,219287,TL235192,1/1/1980 12:00:00 AM,,133,24,10,Knebworth,1.6,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9UG,Yes,51.855994,-0.206283,523630,219010,TL236190,1/1/1980 12:00:00 AM,,133,12,3,Knebworth,1.8,Welwyn Garden City,Oaklands,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9UL,No,51.848140,-0.221376,522612,218111,TL226181,1/1/1980 12:00:00 AM,6/1/1997 12:00:00 AM,105,,,Knebworth,3.1,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
AL6 9UN,Yes,51.859874,-0.211421,523266,219433,TL232194,4/1/2021 12:00:00 AM,,132,,,Knebworth,1.8,Welwyn Garden City,Oaklands,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6BA,Yes,51.865935,-0.190143,524714,220143,TL247201,1/1/1980 12:00:00 AM,,105,20,10,Knebworth,0.2,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6BL,Yes,51.865424,-0.190373,524700,220086,TL246200,1/1/1980 12:00:00 AM,,104,15,8,Knebworth,0.3,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6BQ,Yes,51.864774,-0.191938,524594,220011,TL245200,1/1/1980 12:00:00 AM,,102,77,37,Knebworth,0.4,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6BT,Yes,51.865296,-0.193747,524468,220066,TL244200,1/1/1980 12:00:00 AM,,105,127,59,Knebworth,0.5,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6BU,Yes,51.864442,-0.192547,524553,219973,TL245199,1/1/1980 12:00:00 AM,,102,102,43,Knebworth,0.4,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6BZ,Yes,51.865111,-0.191498,524623,220049,TL246200,1/1/1980 12:00:00 AM,,102,83,35,Knebworth,0.3,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6DH,Yes,51.862077,-0.191867,524606,219711,TL246197,1/1/1980 12:00:00 AM,,108,18,5,Knebworth,0.6,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6DJ,Yes,51.862757,-0.192217,524580,219786,TL245197,1/1/1980 12:00:00 AM,,109,41,16,Knebworth,0.6,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6DW,No,51.866186,-0.190700,524675,220170,TL246201,1/1/1983 12:00:00 AM,12/1/2013 12:00:00 AM,108,41,0,Knebworth,0.2,Knebworth,,Affinity Water,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6EH,Yes,51.866209,-0.192287,524566,220170,TL245201,12/1/1995 12:00:00 AM,,110,52,19,Knebworth,0.4,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6EQ,Yes,51.866194,-0.190690,524676,220171,TL246201,6/1/2016 12:00:00 AM,,106,,,Knebworth,0.2,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6HQ,No,51.872112,-0.211264,523243,220794,TL232207,12/1/2000 12:00:00 AM,9/1/2020 12:00:00 AM,127,,,Knebworth,1.7,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6PA,No,51.866473,-0.191778,524600,220200,TL245202,1/1/1983 12:00:00 AM,12/1/1990 12:00:00 AM,111,,,Knebworth,0.3,Knebworth,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6PH,Yes,51.866900,-0.192095,524577,220247,TL245202,1/1/1980 12:00:00 AM,,114,66,22,Knebworth,0.3,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6PL,Yes,51.865962,-0.194267,524430,220139,TL244201,1/1/1980 12:00:00 AM,,111,20,7,Knebworth,0.5,Knebworth,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6PP,Yes,51.867235,-0.202312,523873,220267,TL238202,1/1/1980 12:00:00 AM,,133,20,13,Knebworth,1.0,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6PR,Yes,51.868229,-0.207830,523490,220368,TL234203,1/1/1980 12:00:00 AM,,129,129,49,Knebworth,1.4,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6PS,Yes,51.868848,-0.209046,523405,220435,TL234204,1/1/1980 12:00:00 AM,,129,9,4,Knebworth,1.5,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6PX,Yes,51.882127,-0.204799,523661,221919,TL236219,2/1/2010 12:00:00 AM,,103,4,2,Knebworth,2.1,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6PY,Yes,51.872800,-0.214700,523005,220865,TL230208,1/1/1980 12:00:00 AM,,131,14,6,Knebworth,2.0,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QA,Yes,51.868891,-0.213053,523129,220433,TL231204,1/1/1980 12:00:00 AM,,130,10,4,Knebworth,1.8,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QB,Yes,51.868274,-0.214902,523003,220361,TL230203,1/1/1980 12:00:00 AM,,131,16,6,Knebworth,1.9,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QD,Yes,51.868678,-0.215618,522953,220405,TL229204,1/1/1980 12:00:00 AM,,130,16,5,Knebworth,2.0,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QE,Yes,51.867109,-0.216401,522903,220229,TL229202,1/1/1980 12:00:00 AM,,127,5,5,Knebworth,2.0,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QF,Yes,51.866700,-0.216844,522874,220183,TL228201,1/1/1980 12:00:00 AM,,126,9,5,Knebworth,2.0,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QG,Yes,51.865467,-0.219129,522720,220042,TL227200,1/1/1980 12:00:00 AM,,125,7,3,Knebworth,2.2,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QH,Yes,51.865282,-0.220589,522620,220019,TL226200,1/1/1980 12:00:00 AM,,125,9,6,Knebworth,2.3,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QJ,Yes,51.863609,-0.221701,522548,219831,TL225198,1/1/1980 12:00:00 AM,,123,14,8,Knebworth,2.4,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QL,Yes,51.867963,-0.223484,522413,220312,TL224203,1/1/1980 12:00:00 AM,,126,8,3,Knebworth,2.5,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QN,Yes,51.867449,-0.214621,523025,220270,TL230202,4/1/1987 12:00:00 AM,,129,24,15,Knebworth,1.9,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QQ,No,51.865096,-0.219429,522700,220000,TL226199,9/1/1991 12:00:00 AM,12/1/1994 12:00:00 AM,124,,,Knebworth,2.2,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6QR,No,51.864219,-0.220916,522600,219900,TL225198,1/1/1980 12:00:00 AM,12/1/1983 12:00:00 AM,123,,,Knebworth,2.3,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG3 6SL,Yes,51.869417,-0.213797,523076,220490,TL230204,12/1/1996 12:00:00 AM,,131,27,9,Knebworth,1.8,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8DT,No,51.870816,-0.240992,521200,220600,TL211206,8/1/1993 12:00:00 AM,7/1/1995 12:00:00 AM,135,,,Knebworth,3.7,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8SX,Yes,51.870305,-0.242319,521110,220541,TL211205,1/1/1980 12:00:00 AM,,133,2,1,Knebworth,3.8,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TA,Yes,51.866250,-0.249135,520652,220079,TL206200,1/1/1980 12:00:00 AM,,121,12,3,Knebworth,4.2,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TB,Yes,51.871131,-0.235619,521569,220644,TL215206,1/1/1980 12:00:00 AM,,133,4,1,Knebworth,3.3,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TD,Yes,51.876857,-0.244656,520932,221266,TL209212,1/1/1980 12:00:00 AM,,136,14,4,Stevenage,3.8,,,Affinity Water,Anglian Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TE,No,51.870959,-0.232547,521781,220630,TL217206,1/1/1980 12:00:00 AM,6/1/2000 12:00:00 AM,132,,,Knebworth,3.1,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TG,Yes,51.878154,-0.228609,522033,221437,TL220214,1/1/1980 12:00:00 AM,,126,12,4,Stevenage,3.0,,,Affinity Water,Anglian Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TH,Yes,51.866994,-0.235148,521613,220185,TL216201,1/1/1980 12:00:00 AM,,128,19,7,Knebworth,3.3,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TJ,Yes,51.858079,-0.234292,521696,219195,TL216191,1/1/1980 12:00:00 AM,,115,1,1,Knebworth,3.4,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TL,No,51.866685,-0.235401,521596,220150,TL215201,1/1/1980 12:00:00 AM,5/1/2015 12:00:00 AM,125,,,Knebworth,3.3,,,Affinity Water,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TN,No,51.864416,-0.233980,521700,219900,TL216198,9/1/1991 12:00:00 AM,12/1/1992 12:00:00 AM,120,,,Knebworth,3.2,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TP,Yes,51.862837,-0.234919,521640,219723,TL216197,1/1/1980 12:00:00 AM,,122,4,1,Knebworth,3.3,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TQ,Yes,51.870664,-0.230917,521894,220600,TL218205,1/1/1980 12:00:00 AM,,134,1,1,Knebworth,3.0,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TR,Yes,51.864100,-0.229248,522027,219873,TL220198,1/1/1980 12:00:00 AM,,125,28,12,Knebworth,2.9,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TS,Yes,51.860395,-0.230396,521958,219459,TL219194,1/1/1980 12:00:00 AM,,113,8,2,Knebworth,3.0,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8TW,No,51.861742,-0.235537,521600,219600,TL215196,7/1/1990 12:00:00 AM,12/1/1991 12:00:00 AM,122,,,Knebworth,3.4,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8WT,Yes,51.870969,-0.232604,521777,220631,TL217206,6/1/2000 12:00:00 AM,,132,6,1,Knebworth,3.1,,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8WU,No,51.870959,-0.232547,521781,220630,TL217206,6/1/2005 12:00:00 AM,8/1/2005 12:00:00 AM,132,,,Knebworth,3.1,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote
SG4 8WX,No,51.870959,-0.232547,521781,220630,TL217206,4/1/2003 12:00:00 AM,10/1/2005 12:00:00 AM,132,,,Knebworth,3.1,,,,,North Hertfordshire,Knebworth,Knebworth & Codicote