Berwick-upon-Tweed, sometimes known as Berwick-on-Tweed or simply Berwick, is a town and civil parish in Northumberland, England, 2.5 mi south of the Anglo-Scottish border, and the northernmost town in England. The 2011 United Kingdom census recorded Berwick's population as 12,043. The town is at the mouth of the River Tweed on the east coast, 56 mi south east of Edinburgh, 65 mi north of Newcastle upon Tyne, and 345 mi north of London.