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, …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. Richmarr Construction designed Kings Park as a planned community, with a park at its center, an elementary school, and an adjacent namesake shopping center.