East Grinstead is a town in West Sussex, England, near the East Sussex, Surrey, and Kent borders, 27 miles (43 km) south of London, 21 miles (34 km) northeast of Brighton, and 38 miles (61 km) northeast of the county town of Chichester. Situated in the northeast of the county, the civil parish has an area of 2,443.45 hectares. The population at the 2011 Census was 26,383.

West Sussex is a ceremonial county in South East England. It is bordered by Surrey to the north, East Sussex to the east, the English Channel to the south, and Hampshire to the west. The largest settlement is Crawley, and the county town is the city of Chichester.