Capitol Heights is a town in Prince George's County, Maryland, United States, located on the border of both the Northeast& Southeast quadrants of Washington. Per the 2020 census, the population was 4,050. The town of Capitol Heights is officially bounded between Southern Avenue NE/SE to the north, Yost Place, and Eastern Avenue NE to the east, the Watts Branch Stream, Brooke Road, and Capitol Heights Boulevard to the south, and Marlboro Pike to the west.