Burgess Hill is definitely a civil parish along with a town primarily in the Mid Sussex district of West Sussex, England, near the border with East Sussex, within the edge of the South Downs National Park. Located 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 an area of 9.47 km2 (3.66 sq mi) and had a populace of 28,803 during the 2001 Census, making it 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.