Lancashire (/ˈlæŋkəʃər/ LANG-kə-shər, /-ʃɪər/ -sheer; abbreviated Lancs) is a ceremonial county in North West England. It is bordered by Cumbria to the north, North Yorkshire and West Yorkshire to the east, Greater Manchester and Merseyside to the south, and the Irish Sea to the west. The largest settlement is the city of Preston.
The county has an area of 3,079 square kilometres (1,189 sq mi) and had a population of 1,601,645 in 2024. Preston and Blackburn are located near the centre, Burnley in the east, the seaside resort of Blackpool on the Irish Sea coast in the west, and the city of Lancaster in the north. For local government purposes the county comprises a non-metropolitan county, with twelve districts, and two unitary authority areas: Blackburn with Darwen and Blackpool. Lancashire County Council and the two unitary councils collaborate through the Lancashire Combined County Authority. The county historically included the Furness and Cartmel peninsulas of Cumbria, northern Greater Manchester and Merseyside, and Warrington, but excluded the eastern part of the Forest of Bowland.