Asheldam is a hamlet and civil parish in Essex, England. It is located about 14km southeast of Maldon and is 26km east-southeast from the county town of Chelmsford. The village is in the district of Maldon and the parliamentary constituency of Maldon & East Chelmsford. The village is part of Asheldham and Dengie Parish Council.It is on the Dengie peninsula, and is about 12 miles by road from Maldon. According to the 2001 census it had a population of 150, reducing to 142 at the Census 2011.A Ham class minesweeper launched in September 1953 was named after the hamlet.