Chessington is an area in the Royal Borough of Kingston upon Thames within Greater London. It is the largest salient of Greater London into the neighbouring county of Surrey. As of the 2011 census it had a population of 18,973. The Bonesgate Stream, a tributary of the Hogsmill River runs through it. The popular theme park resort Chessington World of Adventures, which incorporates Chessington Zoo, is located in the south-west of the area.