Cheshire ( CHESH-ər, -eer) is a ceremonial county in North West England. It is bordered by Merseyside to the north-west, Greater Manchester to the north-east, Derbyshire to the east, Staffordshire to the south-east, and Shropshire to the south; to the west it is bordered by the Welsh counties of Flintshire and Wrexham, and has a short coastline on the Dee Estuary. The largest settlement is Warrington.
The county has an area of 905 square miles (2,344 km) and had a population of 1,139,884 in 2024. The areas around the River Mersey in the north of the county are the most densely populated, with Warrington, Runcorn, Widnes, and Ellesmere Port located on the river. The city of Chester lies in the west of the county, Crewe in the south, and Macclesfield in the east. For local government purposes Cheshire comprises four unitary authority areas: Cheshire East, Cheshire West and Chester, Halton, and Warrington. The county historically included all of the Wirral Peninsula and parts of southern Greater Manchester and northern Derbyshire, but excluded Widnes and Warrington.