Coates is a village and civil parish situated in Cotswold District,Gloucestershire, England. It is around 3 miles (4.8 km) west of Cirencester and close to Cirencester Park, part of the Bathurst Estate. It is the nearest village to the source of the river Thames at Thames Head, and it is close to the course of the Foss Way or Fosse Way, the ancient Roman road. The nearest railway station is Kemble. The village population taken at the 2011 census was 507.