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 AL3 8DL,Yes,51.815875,-0.437140,507828,214182,TL078141,1/1/1980 12:00:00 AM,,136,55,22,Harpenden,5.9,Flamstead,Affinity Water,Thames Water,Dacorum,Watling,Bridgewater AL3 8EA,Yes,51.815594,-0.437701,507790,214150,TL077141,1/1/1980 12:00:00 AM,,135,49,23,Harpenden,5.9,Flamstead,Affinity Water,Thames Water,Dacorum,Watling,Bridgewater AL3 8EB,Yes,51.817150,-0.439054,507693,214321,TL076143,1/1/1980 12:00:00 AM,,142,55,23,Harpenden,6.0,Flamstead,Affinity Water,Thames Water,Dacorum,Watling,Bridgewater AL3 8EG,Yes,51.814616,-0.436458,507878,214043,TL078140,6/1/2000 12:00:00 AM,,128,15,6,Harpenden,5.8,Flamstead,Affinity Water,Thames Water,Dacorum,Watling,Bridgewater