Newington Forest is located in southern Fairfax County. Its borders are Silver Brook and Rocky Branch to the south,
Pohick Creek to the east, the
Fairfax County Parkway (State Route 286) to the north, Hooes Road to the west, and Silverbrook Road to the southwest. Neighboring communities are
Burke to the north,
West Springfield at the northeastern corner of Newington Forest,
Newington to the east,
Laurel Hill to the south, and
Crosspointe and
South Run to the west. Pohick Road runs through the center of the CDP. Downtown
Washington, D.C. is to the northeast, and the city of
Fairfax is to the northwest. According to the
U.S. Census Bureau, the Newington Forest CDP has a total area of , of which is land and , or 1.36%, is water. ==Demographics==