Bradwell-on-Sea is a village and civil parish in Essex, England; it is on the Dengie peninsula. It is located 5.6 mi (9.0 km) north-north-east of Southminster and is 19 mi (31 km) east of the county town of Chelmsford. The village is in the District of Maldon and in the parliamentary constituency of Maldon, whose boundaries were last varied at the 2010 general election. In 2011, it had a population of 863, a decline from 877 in the previous census. In 2021 the population was 892.

Southminster is a village and civil parish on the Dengie Peninsula in the Maldon district of Essex in the East of England. It lies about 3 miles (4.8 km) north of Burnham-on-Crouch and 10 miles (16 km) south-east of Maldon; it is approximately 52 miles (84 km) east-north-east of London. To the north is the River Blackwater, which is tidal, and, since Roman times, has been the gateway to trading in the area.