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 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 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 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 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 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 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 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