Newington is a census-designated place (CDP) in Fairfax County, Virginia, United States. The population was 12,943 at the 2010 census. The 2010 census showed a significant decrease after half the population was split off to the newly created Newington Forest CDP.While the ZIP code for Newington is 22122, this is only for delivery points within the post office itself. Homes and businesses in the CDP have Springfield or Lorton street addresses.GeographyNewington is located in southern Fairfax County at . It is bordered to the north by Springfield, to the northeast by Franconia and Kingstowne, to the east and southeast by Fort Belvoir, to the southwest by Lorton, to the west by Newington Forest, and to the northwest by West Springfield. Interstate 95 passes through the middle of the CDP, with access from Exit 166 . Washington, D.C. is to the northeast via I-95 and I-395, and Fredericksburg is to the southwest. The Fairfax County Parkway leads northwest to Interstate 66 between Fairfax and Centreville.
