South Benfleet is a town or populous, largely modern village in the Castle Point district of Essex, 30 miles east of London. The Benfleet SS7 post town includes South Benfleet, Thundersley, New Thundersley and Hadleigh. The Battle of Benfleet took place here between the Vikings and Saxons in 894.The community is directly north of Canvey Island and is served by Benfleet railway station.