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. Using only the above description and what you know about the world, "In the previous census, Newington's population was 15,754." is definitely correct, incorrect, or inconclusive? 