Historic Counties Institute

Geography • Identity • Continuity

Reference, evidence, and public education for the historic counties.

Historic counties are the enduring geography. Councils are administration, lieutenancies are ceremonial – neither define the counties.

County Dossier

Sussex

A county of downs, coast and Saxon kings.

Sussex is a maritime county on England’s south coast, with a history spanning 1,500 years. Its coastline features seaside resorts including Brighton, Hove, Bognor Regis, Worthing, Eastbourne, Hastings, and Bexhill-on-Sea.

Sussex county reference map

At a glance

Sussex at a glance

A county of downs, coast and Saxon kings.

Nation England
Formal name County of Sussex
Foundation c. 771
County Day 16 June
  • Kingdom of the South Saxons 6th Century
  • Absorbed by Wessex 9th Century
  • Domesday Book (1086): Suthsexe
  • Area: 1,466 sq mi
  • Population: 1,612,454
  • County Top: Black Down

County Geography

Sussex meets Hampshire on the west, Surrey on the north, Kent on the east, and the English Channel on the south. The county is organised by the long South Downs ridge, the river gaps that cut through it, and the broad Weald lying behind the coast.

Coast, downland, and Weald give Sussex a clear county shape. The Arun, Adur, Ouse, and Cuckmere lines reinforce that shape by tying the inland country to the coast within one county frame.

Map Reference

View Sussex on the map

Sussex is the county. The map also shows lieutenancies and council areas that use the county name.

County Lieutenancy Council
Sussex county map preview Open Sussex in the Interactive Map

Open Sussex in the Interactive Map

Places and routes

Lewes, Brighton, Horsham, Worthing, and Eastbourne show the county from downland crossing and coastal centre to Wealden market town, resort coast, and chalk-headland shore. Together they explain Sussex as one county better than the east-west split does.

Connections

Sussex’s routes have long run along the coast, through the gaps in the Downs, and northward across the Weald. They link the western coast, eastern Downs, and inland Weald without breaking the county frame.

Sussex landscape or key location
Bridge over the River Arun near Amberley in Sussex.

Names

  • Sussex
  • County of Sussex

County of Sussex is the formal historical style.

Anglo-Saxon charters already refer to Suthseaxe, and Domesday records Sussex as Suthsexe.

Support the reference

Enjoying this county guide?

Supporters help fund new county research, articles and map improvements.

County Reference

Explore Sussex

Open the map to explore Sussex, or return to the county index to browse other counties.