Peterlee is a town in County Durham, England, with Sunderland to the north, Hartlepool to the south, the Durham Coast to the east and Durham to the west. It gained town status in 1948 under the New Towns Act 1946. The act also created the nearby settlement of Newton Aycliffe and later Washington, Tyne and Wear.

County Durham is a local government district in the ceremonial county of County Durham, England. It is governed by Durham County Council, a unitary authority. The district has an area of 2,232.6 km2, and contains 135 civil parishes. It forms part of the larger ceremonial county of Durham, together with boroughs of Darlington, Hartlepool, and the part of Stockton-on-Tees north of the River Tees.