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,51.816462,-0.156058,527200,214700,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,51.805166,-0.156490,527202,213443,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,51.807574,-0.156972,527162,213710,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,51.814001,-0.156811,527155,214425,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,51.812931,-0.156812,527158,214306,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,51.807574,-0.156972,527162,213710,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,51.814935,-0.157281,527120,214528,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,51.815489,-0.154821,527288,214594,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,51.815083,-0.155882,527216,214547,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,51.816102,-0.156029,527203,214660,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,51.810050,-0.145135,527971,214006,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,51.806296,-0.152281,527489,213576,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