Harworth is a town in the Bassetlaw District in the county of Nottinghamshire, East Midlands of England. It is approximately north of Worksop. Together with the neighbouring mining town of Bircotes, it forms the civil parish of Harworth Bircotes, with a combined population of nearly 8,000 residents. The population of the civil parish was measured at 7,948 in the 2011 Census. The settlements are part of the modern district of Bassetlaw, which combined the district of Worksop and the district of Retford.