Liverpool is a city and metropolitan borough in Merseyside, North West England. The metropolitan borough had a population of 486,100 in 2021 and is part of a larger metropolitan area with a population of 2.24 million in 2001. The city is located on the eastern side of the Mersey Estuary, adjacent to the Irish Sea, and is approximately 178 miles from London. It was historically in Lancashire, and is part of Liverpool City Region.