"TL255015" . "Potters Bar"@en . "EN6" . . "21639"^^ . . . "Potters Bar is a town in Hertfordshire, England, 18 miles (29 km) north of London. In 2011, it had a population of 21,882.The town dates to the early 13th century but remained a small, mainly agricultural, settlement until the arrival of the Great Northern Railway in 1850. It is now part of the London commuter belt."@en . . . "01707" . .