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 0AA,Yes,51.815486,-0.178982,525623,214552,TL256145,8/1/2002 12:00:00 AM,,61,13,6,Welwyn North,1.3,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0AB,Yes,51.816179,-0.178969,525622,214629,TL256146,1/1/1980 12:00:00 AM,,63,20,7,Welwyn North,1.2,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0BW,Yes,51.815872,-0.178894,525628,214595,TL256145,8/1/2002 12:00:00 AM,,62,17,6,Welwyn North,1.2,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0BZ,Yes,51.815991,-0.180181,525539,214606,TL255146,12/1/2000 12:00:00 AM,,61,29,16,Welwyn North,1.2,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0FD,Yes,51.821426,-0.157339,527098,215250,TL270152,12/1/2012 12:00:00 AM,,91,,,Welwyn North,2.4,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0FF,Yes,51.808606,-0.162156,526802,213816,TL268138,1/1/2014 12:00:00 AM,,58,,,Welwyn North,2.6,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0FG,No,51.809136,-0.161511,526845,213876,TL268138,4/1/2021 12:00:00 AM,6/1/2024 12:00:00 AM,58,,,Welwyn North,2.6,,,,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0FH,Yes,51.821140,-0.156321,527169,215220,TL271152,12/1/2015 12:00:00 AM,,89,,,Welwyn North,2.5,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0FN,Yes,51.812414,-0.158403,527050,214246,TL270142,2/1/2022 12:00:00 AM,,127,,,Welwyn North,2.6,,,,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HF,Yes,51.831799,-0.164579,526570,216391,TL265163,1/1/1980 12:00:00 AM,,129,19,8,Welwyn North,2.1,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HG,Yes,51.831154,-0.166434,526444,216316,TL264163,1/1/1980 12:00:00 AM,,129,6,2,Welwyn North,2.0,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HH,Yes,51.830101,-0.165258,526528,216201,TL265162,1/1/1980 12:00:00 AM,,128,15,4,Welwyn North,2.0,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HJ,Yes,51.830262,-0.161754,526769,216225,TL267162,1/1/1980 12:00:00 AM,,128,12,5,Welwyn North,2.2,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HL,Yes,51.827496,-0.165407,526525,215911,TL265159,1/1/1980 12:00:00 AM,,123,45,16,Welwyn North,1.9,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HN,Yes,51.829000,-0.167306,526390,216075,TL263160,1/1/1980 12:00:00 AM,,127,24,11,Welwyn North,1.8,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HP,Yes,51.828885,-0.164567,526579,216067,TL265160,1/1/1980 12:00:00 AM,,125,9,4,Welwyn North,2.0,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HQ,Yes,51.830678,-0.164190,526600,216267,TL265162,1/1/1980 12:00:00 AM,,129,24,10,Welwyn North,2.1,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HT,Yes,51.816269,-0.157637,527092,214676,TL270146,12/1/1997 12:00:00 AM,,79,,,Welwyn North,2.5,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HY,No,51.816469,-0.156032,527202,214701,TL272147,2/1/1990 12:00:00 AM,12/1/1990 12:00:00 AM,81,,,Welwyn North,2.6,Tewin,,,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0HZ,Yes,51.815804,-0.156654,527161,214626,TL271146,7/1/1983 12:00:00 AM,,80,10,5,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JB,Yes,51.811021,-0.164742,526617,214080,TL266140,7/1/1983 12:00:00 AM,,59,5,1,Welwyn North,2.3,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JD,Yes,51.805172,-0.156464,527204,213444,TL272134,1/1/1980 12:00:00 AM,,66,12,4,Welwyn North,3.2,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JF,No,51.812573,-0.158208,527063,214264,TL270142,6/1/1997 12:00:00 AM,10/1/2021 12:00:00 AM,74,2,1,Welwyn North,2.6,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JG,No,51.807581,-0.156946,527164,213711,TL271137,1/1/1980 12:00:00 AM,2/1/2017 12:00:00 AM,55,,,Welwyn North,3.0,,,,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JJ,Yes,51.814007,-0.156786,527157,214426,TL271144,1/1/1980 12:00:00 AM,,79,61,26,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JL,Yes,51.812937,-0.156786,527160,214307,TL271143,1/1/1980 12:00:00 AM,,77,24,12,Welwyn North,2.7,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JN,Yes,51.814555,-0.159578,526963,214482,TL269144,1/1/1980 12:00:00 AM,,76,5,2,Welwyn North,2.4,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JP,Yes,51.815873,-0.162818,526736,214623,TL267146,1/1/1980 12:00:00 AM,,82,7,4,Welwyn North,2.2,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JQ,Yes,51.807581,-0.156946,527164,213711,TL271137,1/1/1980 12:00:00 AM,,55,11,5,Welwyn North,3.0,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JR,Yes,51.814941,-0.157255,527122,214529,TL271145,1/1/1980 12:00:00 AM,,79,28,12,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JS,Yes,51.816300,-0.155053,527270,214684,TL272146,1/1/1980 12:00:00 AM,,82,4,3,Welwyn North,2.7,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JT,Yes,51.815496,-0.154795,527290,214595,TL272145,1/1/1980 12:00:00 AM,,81,25,11,Welwyn North,2.7,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JU,Yes,51.815090,-0.155857,527218,214548,TL272145,1/1/1980 12:00:00 AM,,81,76,25,Welwyn North,2.7,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JW,Yes,51.815058,-0.164142,526647,214530,TL266145,1/1/1980 12:00:00 AM,,80,29,10,Welwyn North,2.1,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JX,Yes,51.816108,-0.156004,527205,214661,TL272146,1/1/1980 12:00:00 AM,,81,24,8,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JY,Yes,51.815893,-0.153720,527363,214641,TL273146,1/1/1980 12:00:00 AM,,81,38,14,Welwyn North,2.8,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0JZ,Yes,51.816509,-0.152911,527417,214711,TL274147,1/1/1980 12:00:00 AM,,81,17,7,Welwyn North,2.8,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LA,Yes,51.816711,-0.154862,527282,214730,TL272147,1/1/1980 12:00:00 AM,,82,51,24,Welwyn North,2.7,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LB,Yes,51.816829,-0.156671,527157,214740,TL271147,1/1/1980 12:00:00 AM,,82,24,10,Welwyn North,2.5,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LD,Yes,51.817417,-0.155704,527222,214807,TL272148,12/1/1996 12:00:00 AM,,83,2,1,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LE,Yes,51.819305,-0.156279,527177,215016,TL271150,1/1/1980 12:00:00 AM,,85,58,21,Welwyn North,2.5,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LF,Yes,51.818152,-0.155021,527267,214890,TL272148,1/1/1980 12:00:00 AM,,84,87,34,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LG,Yes,51.818739,-0.155737,527216,214954,TL272149,1/1/1980 12:00:00 AM,,84,41,16,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LH,Yes,51.821198,-0.154882,527268,215229,TL272152,1/1/1980 12:00:00 AM,,87,9,3,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LJ,Yes,51.822171,-0.156133,527179,215335,TL271153,1/1/1980 12:00:00 AM,,90,22,10,Welwyn North,2.5,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LL,Yes,51.824924,-0.153380,527361,215646,TL273156,1/1/1980 12:00:00 AM,,94,11,7,Welwyn North,2.7,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LN,Yes,51.828676,-0.147204,527776,216074,TL277160,1/1/1980 12:00:00 AM,,118,2,1,Welwyn North,3.1,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LP,Yes,51.829384,-0.145941,527861,216155,TL278161,1/1/1980 12:00:00 AM,,116,3,2,Welwyn North,3.2,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LQ,Yes,51.819450,-0.154634,527290,215035,TL272150,1/1/1980 12:00:00 AM,,86,85,36,Welwyn North,2.6,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LR,Yes,51.830293,-0.147689,527738,216253,TL277162,1/1/1980 12:00:00 AM,,123,5,2,Welwyn North,3.1,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LS,Yes,51.817232,-0.157118,527125,214784,TL271147,1/1/1980 12:00:00 AM,,83,11,4,Welwyn North,2.5,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LT,Yes,51.835207,-0.149650,527589,216796,TL275167,1/1/1980 12:00:00 AM,,129,22,8,Watton-At-Stone,3.1,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LU,Yes,51.822037,-0.157300,527099,215318,TL270153,1/1/1980 12:00:00 AM,,92,6,2,Welwyn North,2.4,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LW,Yes,51.829927,-0.147297,527766,216213,TL277162,1/1/1980 12:00:00 AM,,121,7,2,Welwyn North,3.2,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LX,Yes,51.822598,-0.158119,527041,215379,TL270153,1/1/1980 12:00:00 AM,,94,22,10,Welwyn North,2.3,Tewin,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LY,Yes,51.823277,-0.161835,526783,215448,TL267154,1/1/1980 12:00:00 AM,,100,15,5,Welwyn North,2.1,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0LZ,Yes,51.824785,-0.163428,526669,215613,TL266156,1/1/1980 12:00:00 AM,,109,7,5,Welwyn North,2.0,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NP,Yes,51.834257,-0.159036,526945,216674,TL269166,1/1/1980 12:00:00 AM,,121,43,17,Welwyn North,2.6,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NR,Yes,51.832851,-0.159994,526883,216516,TL268165,1/1/1980 12:00:00 AM,,124,28,11,Welwyn North,2.4,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NS,Yes,51.832560,-0.158612,526979,216486,TL269164,1/1/1980 12:00:00 AM,,122,14,7,Welwyn North,2.5,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NT,No,51.830938,-0.161247,526802,216301,TL268163,12/1/1998 12:00:00 AM,6/1/1999 12:00:00 AM,128,,,Welwyn North,2.3,Tewin Wood,,,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NU,Yes,51.832007,-0.161784,526762,216419,TL267164,1/1/1980 12:00:00 AM,,127,23,10,Welwyn North,2.3,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NW,Yes,51.834390,-0.158305,526995,216690,TL269166,1/1/1980 12:00:00 AM,,120,20,9,Welwyn North,2.6,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NX,Yes,51.831856,-0.160716,526836,216404,TL268164,1/1/1980 12:00:00 AM,,127,15,5,Welwyn North,2.3,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NY,Yes,51.831833,-0.157553,527054,216407,TL270164,1/1/1980 12:00:00 AM,,120,42,18,Welwyn North,2.5,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0NZ,Yes,51.831735,-0.156483,527128,216398,TL271163,1/1/1980 12:00:00 AM,,114,64,22,Welwyn North,2.6,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0PA,Yes,51.829075,-0.159988,526894,216096,TL268160,1/1/1980 12:00:00 AM,,124,28,8,Welwyn North,2.3,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0PB,Yes,51.829631,-0.161634,526779,216155,TL267161,1/1/1980 12:00:00 AM,,127,8,3,Welwyn North,2.2,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 0PD,Yes,51.828692,-0.161963,526759,216050,TL267160,1/1/1980 12:00:00 AM,,123,30,10,Welwyn North,2.1,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
AL6 9EB,No,51.827991,-0.145403,527902,216001,TL279160,6/1/1997 12:00:00 AM,12/1/1998 12:00:00 AM,112,,,Welwyn North,3.2,,,,East Hertfordshire,Hertford Rural,Hertford Rural
SG14 2NE,Yes,51.810056,-0.145109,527973,214007,TL279140,1/1/1980 12:00:00 AM,,80,21,10,Welwyn North,3.6,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
SG14 2NG,Yes,51.806321,-0.152341,527485,213579,TL274135,1/1/1980 12:00:00 AM,,53,12,4,Welwyn North,3.3,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
SG14 2NQ,Yes,51.803884,-0.146044,527926,213319,TL279133,1/1/1980 12:00:00 AM,,54,6,3,Hertford North,3.8,,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural
SG3 6SA,Yes,51.838668,-0.152469,527385,217176,TL273171,1/1/1980 12:00:00 AM,,127,40,16,Watton-At-Stone,3.0,Tewin Wood,Affinity Water,Thames Water,East Hertfordshire,Hertford Rural,Hertford Rural