Burgess Hill is actually a civil parish as well as a town principally found in the Mid Sussex district of West Sussex, England, towards the border with East Sussex, within the side of the South Downs National Park. Found 62 km (39 mi) south of London, 16 km (9.9 mi) north of Brighton and Hove, and 47 km (29 mi) east-northeast from the county town of Chichester, it takes up a space of 9.47 km2 (3.66 sq mi) and had a population of 28,803 at the time of the 2001 Census, turning it into the most populous parish within the region. Other nearby towns consist of Haywards Heath to the north east and Lewes, the county town of East Sussex, to the south east.