Postcode,In Use?,Latitude,Longitude,Easting,Northing,Grid Ref,Introduced,Terminated,Altitude,Population,Households,Nearest Station,Distance To Station (KM),Built Up Area,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,Woolmer Green,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,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 0QA,Yes,51.845568,-0.199023,524159,217863,TL241178,1/1/1980 12:00:00 AM,,120,23,7,Welwyn North,2.5,Woolmer Green,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,Woolmer Green,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,Woolmer Green,,,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9SD,Yes,51.840705,-0.210932,523352,217302,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,,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,Woolmer Green,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,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9SL,No,51.845395,-0.201847,523965,217839,TL239178,1/1/1980 12:00:00 AM,4/1/2005 12:00:00 AM,121,,,Welwyn North,2.5,Woolmer Green,,,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9SN,Yes,51.845206,-0.201825,523967,217818,TL239178,1/1/1980 12:00:00 AM,,120,79,4,Welwyn North,2.5,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9SP,Yes,51.845570,-0.200374,524066,217861,TL240178,1/1/1980 12:00:00 AM,,123,20,13,Welwyn North,2.5,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9SR,No,51.845068,-0.202775,523902,217801,TL239178,1/1/1980 12:00:00 AM,6/1/1998 12:00:00 AM,121,,,Welwyn North,2.5,Woolmer Green,,,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,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9ST,Yes,51.848375,-0.202686,523899,218169,TL238181,1/1/1980 12:00:00 AM,,124,48,15,Knebworth,2.3,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9SU,Yes,51.848982,-0.201196,524000,218239,TL239182,1/1/1980 12:00:00 AM,,125,53,19,Knebworth,2.2,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9SW,Yes,51.845969,-0.201171,524010,217904,TL240179,1/1/1980 12:00:00 AM,,122,51,28,Knebworth,2.5,Woolmer Green,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,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9SY,Yes,51.851773,-0.203204,523854,218546,TL238185,1/1/1980 12:00:00 AM,,129,35,14,Knebworth,2.0,Woolmer Green,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,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9TA,Yes,51.853971,-0.203465,523830,218790,TL238187,1/1/1980 12:00:00 AM,,130,13,4,Knebworth,1.8,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9TJ,Yes,51.854202,-0.213316,523151,218799,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,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9UA,Yes,51.848543,-0.220814,522650,218157,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,51.854922,-0.212794,523185,218880,TL231188,1/1/1980 12:00:00 AM,,126,2,1,Knebworth,2.2,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9UE,Yes,51.858628,-0.217003,522885,219285,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,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9UG,Yes,51.856001,-0.206260,523632,219011,TL236190,1/1/1980 12:00:00 AM,,133,12,3,Knebworth,1.8,Woolmer Green,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote AL6 9UL,No,51.848146,-0.221352,522614,218112,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,,,,North Hertfordshire,Knebworth,Knebworth & Codicote SG3 6BA,Yes,51.865942,-0.190120,524716,220144,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,-0.193748,524468,220066,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,51.865118,-0.191474,524625,220050,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,51.862084,-0.191843,524608,219712,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,51.862764,-0.192193,524582,219787,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,51.866193,-0.190676,524677,220171,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,-0.192288,524566,220170,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,-0.190691,524676,220171,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,51.872119,-0.211240,523245,220795,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,51.866480,-0.191754,524602,220201,TL246202,1/1/1983 12:00:00 AM,12/1/1990 12:00:00 AM,111,,,Knebworth,0.3,Knebworth,,,North Hertfordshire,Knebworth,Knebworth & Codicote SG3 6PH,Yes,51.866907,-0.192071,524579,220248,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,51.865969,-0.194244,524432,220140,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,51.868236,-0.207807,523492,220369,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,51.868280,-0.214879,523005,220362,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,51.867116,-0.216377,522905,220230,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,-0.219130,522720,220042,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,51.867969,-0.223461,522415,220313,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,51.865103,-0.219405,522702,220001,TL227200,9/1/1991 12:00:00 AM,12/1/1994 12:00:00 AM,124,,,Knebworth,2.2,,,,North Hertfordshire,Knebworth,Knebworth & Codicote SG3 6QR,No,51.864226,-0.220892,522602,219901,TL226199,1/1/1980 12:00:00 AM,12/1/1983 12:00:00 AM,123,,,Knebworth,2.3,,,,North Hertfordshire,Knebworth,Knebworth & Codicote SG3 6SL,Yes,51.869423,-0.213773,523078,220491,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,51.870822,-0.240969,521202,220601,TL212206,8/1/1993 12:00:00 AM,7/1/1995 12:00:00 AM,135,,,Knebworth,3.7,,,,North Hertfordshire,Knebworth,Knebworth & Codicote SG4 8SX,Yes,51.870311,-0.242296,521112,220542,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,51.871137,-0.235596,521571,220645,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,51.870965,-0.232523,521783,220631,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,-0.228610,522033,221437,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,51.866692,-0.235378,521598,220151,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,51.864423,-0.233956,521702,219901,TL217199,9/1/1991 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,51.870671,-0.230894,521896,220601,TL218206,1/1/1980 12:00:00 AM,,134,1,1,Knebworth,3.0,,Affinity Water,Thames Water,North Hertfordshire,Knebworth,Knebworth & Codicote SG4 8TR,Yes,51.864100,-0.229249,522027,219873,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,51.861748,-0.235513,521602,219601,TL216196,7/1/1990 12:00:00 AM,12/1/1991 12:00:00 AM,122,,,Knebworth,3.4,,,,North Hertfordshire,Knebworth,Knebworth & Codicote SG4 8WT,Yes,51.870975,-0.232581,521779,220632,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,51.870965,-0.232523,521783,220631,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,51.870965,-0.232523,521783,220631,TL217206,4/1/2003 12:00:00 AM,10/1/2005 12:00:00 AM,132,,,Knebworth,3.1,,,,North Hertfordshire,Knebworth,Knebworth & Codicote