Fairmount Heights is a town in Prince George's County, Maryland, United States. Per the 2020 census, the population was 1,528. The town was formally incorporated in 1935, making the town the second oldest African-American-majority municipality in Prince George's County. The town is composed of six subdivisions: Fairmount Heights (1900), Waterford (1907), Mount Weissner (1909), North Fairmount Heights (1910), West Fairmount Heights (1911) and Sylvan Vista (1923).

Two Washington, D.C. land developers and lawyers, Allen Clark and Robinson White, platted the first subdivision of Fairmount Heights; separate developers platted the remaining five. Land speculators had purchased the farms that were previously in the area and consolidated the land for development. Clark and White sold the lots to African-Americans. Service on the Washington, Baltimore and Annapolis Electric Railway to the Gregory Station of nearby Seat Pleasant was established in 1908. Fairmount Heights incorporated in 1935 with all six subdivisions. The Fairmount Heights Historic District was added to the National Register of Historic Places in 2011.

(*)- Served as acting mayor

The Town Council of Fairmount Heights consists of six elected councilmembers and an elected mayor who sits as chair of the council. The mayor and councilmembers are elected to serve for two years. The following are current officers of the town:

Prince George's County Police Department District 3 Station in Landover CDP serves the community.

The following is a list of historic sites in Fairmount Heights identified by the Maryland-National Capital Park and Planning Commission. On November 18, 2011, the Town of Fairmount Heights was added to the National Register of Historic Places as the Fairmont Heights Historic District.

Fairmount Heights is located at 38°54′6″N 76°54′52″W / 38.90167°N 76.91444°W / 38.90167; -76.91444 (38.901761, −76.914504).

According to the United States Census Bureau, the town has a total area of 0.27 square miles (0.70 km²), all land.