Kings Park is a census-designated place in the eastern United States in Fairfax County, Virginia, southwest of Washington D.C. The population as of the 2010 census was 4,333.A suburban community begun 64 years ago in early 1960, Kings Park is located a few miles west of the Capital Beltway and Annandale, near the junction of Braddock, Burke Lake, and Rolling roads in the Springfield area.