 The end result sometimes confuses people, since the northern end of the Fort Washington postal area (near the Beltway) identifies more with the communities Oxon Hill or Temple Hills / Camp Springs but still uses a Fort Washington mailing address.Fort Washington is located at (38.743481, -77.010383).According to the United States Census Bureau, the CDP has a total area of , of which is land and , or 16.8%, is water.