Wigan is a town in Greater Manchester, England. It stands on the River Douglas, 7.9 miles (13 km) south-west of Bolton, 10 miles (16 km) north of Warrington and 16 miles (25.7 km) west-northwest of Manchester. Wigan is the largest settlement in the Metropolitan Borough of Wigan and is its administrative centre. The town of Wigan had a total population of 81,203 in 2001, whilst the wider borough has a population of 305,600. The town is the headquarters of the Greater Manchester Combined Authority, the top tier administrative body for Greater Manchester.