The majority of Meseyside is located on the east side of the estuary with the Wirral being situated on the west side of the estuary, on the Wirral Peninsula. Both parts of Merseyside border Cheshire to the south, the eastern part of Merseyside borders Greater Manchester to the east and Lancashire to the north. The two parts of Merseyside are linked by the Mersey Ferry, two Mersey Tunnels and the Mersey Railway.
Merseyside has a population of 1.3 million and is a metropolitan county located in North West England.
Merseyside spans 249 square miles and there are a mix of high density urban areas, suburbs, semi-rural and rural locations. Liverpool City Centre is a focused central business district for Merseyside. Merseyside is also a polycentric county with five metropolitan districts, each of which has at least one major town centre and outlying suburbs.
Other nearby towns are not part of Merseyside, such as Skelmersdale, Ormskirk, Warrington, Runcorn, Widnes and Ellesmere Port. The designation "Greater Merseyside" has sometimes been adopted for Merseyside and these six towns unofficially.
Merseyside has a Lord Lieutenant and a High Sheriff, it is joined by the neighbouring borough of Halton to form the Liverpool City Region, which utilises The Mersey Partnership as a development agency.