Henfield is a large village and civil parish in the Horsham District of West Sussex, England. It lies 41 miles (66 km) south of London, 12 miles (19 km) northwest of Brighton, and 30 miles (48 km) east northeast of the county town of Chichester at the road junction of the A281 and A2037. The parish has a land area of 4,285 acres (1,734.1 ha). In the 2001 census 5,012 people lived in 2,153 households, of whom 2,361 were economically active. Other nearby towns include Burgess Hill to the east and Shoreham-by-Sea to the south. The population at the 2011 Census was 5,349.

Horsham is a local government district in West Sussex, England. It is named after the town of Horsham, which is its largest settlement and where the council is based. The district also includes the surrounding rural area and contains many villages, the largest of which are Southwater and Billingshurst. The district includes part of the South Downs National Park and part of the designated Area of Outstanding Natural Beauty of High Weald. At the 2021 census the district had a population of 147,487.