Haywards Heath's Muster Green was the site of the
Battle of Muster Green, a minor battle that took place in early December 1642 during the
First English Civil War between a
Royalist army under
Edward Ford,
High Sheriff of Sussex, and a smaller (but more disciplined)
Parliamentarian army under
Herbert Morley. Due to the fact that neither side possessed
field guns, hand-to-hand combat ensued and after roughly an hour of fighting and 200 Royalists killed or wounded, the Parliamentarians emerged victorious and
routed the Royalist army. Haywards Heath is located in the east of the ancient parish of
Cuckfield. A separate civil parish and
urban district of Haywards Heath was created in 1894. From 1934 to 1974 Cuckfield, Haywards Heath and
Lindfield were combined to form Cuckfield Urban District, but since 1974 the three settlements have had separate councils again. Haywards Heath as a settlement is a relatively modern development. Following the arrival of the
London & Brighton Railway in 1841, its size increased considerably.
Haywards Heath railway station opened on 12 July 1841 and served as the southern terminus of the line until the completion of
Brighton station on 21 September. The position of Haywards Heath, and its place on both this railway and near the
main road (A23) between London and Brighton, enables it to function as a commuter town, with many residents working in London, Brighton, Crawley and Gatwick Airport. Haywards Heath was in
East Sussex, but a change to the county boundary in 1974 brought it under the jurisdiction of
West Sussex.
Haywards Heath Town Hall was completed in 1990. On May 9, 1946, delegates from thirteen countries, including representatives of the
British and Foreign Bible Society, met in Haywards Heath to establish the
United Bible Societies. Headquartered in
Swindon, this society numbered in 2025 more than 150 chapter (national) societies and worked in more than 200 countries, translating and publishing Bibles. == Governance ==