Edmonston is a town in Prince George's County, Maryland, United States. As of the 2010 census, the town population was 1,445.
The community is located from Washington, D.C. Edmonston's ZIP code is 20781.
The area of present-day Edmonston probably acquired its name from Captain James Edmonston, a member of a prominent Bladensburg, Maryland, family. He was called "Captain" because he owned a large ship. In 1742, he paid five shillings for a piece of land upon which the town of Edmonston eventually developed. The Edmonston Family had been active in local Revolutionary War effort and were descendants of the Family Edmonstone of Duntreath Castle, Scotland.
The first modern settlers of the community were Adam Francis Plummer and his wife Emily Saunders Arnold Plummer, who had been slaves of the powerful Calvert family on the Riversdale Plantation in present-day Riverdale Park. After the Civil War, Adam Plummer purchased ten acres of land for $1000, south of the plantati