Borough of Berwick-upon-Tweed Borough of Berwick-upon-Tweed Berwick-upon-Tweed was a local government district and borough in Northumberland in the north-east of England, on the border with Scotland. The district had a resident population of 25,949 according to the 2001 census, which also notes that it is the most ethnically homogeneous in the country, with 99.6% of the population recording themselves in the 2001 census as "White". It was also the smallest district in England with borough status, and the third-least densely populated local government district (after Eden and Tynedale). Its main town is Berwick-upon-Tweed, sited immediately to the north of the Tweed estuary. The
Coös County, New Hampshire line, and US Route 3, which runs from Carroll in the south to the Canada–US border at Pittsburg/Chartierville, where it continues as Quebec Route 257. Coös County is the least populated of all New Hampshire counties, and the only one with significant amounts of unincorporated land; over half of the municipal-like entities are unincorporated townships, gores, or grants, a rarity in New England, where nearly all of the land is incorporated as towns or cities. The population of these unincorporated territories is minuscule; collectively they account for less than 1% of the population of the county, with only three (Wentworth's