Fort Washington, MD is located in Prince Georges County. It is home to 48198 people. The median household income is $74,933.00 (Source: 2000 Census). The average home value was $163,000.00 (Source: 2000 Census). Nearby towns and cities include Fort Washington, Capitol Heights, District Heights, Lanham, Upper Marlboro. Find listings of real estate for sale in Fort Washington below.