Clifton is an incorporated town located in southwestern Fairfax County, Virginia, United States, with a population of 243 at the time of the 2020 census. Incorporated by the General Assembly on March 9, 1902, Clifton is one of only three towns in the county, the other two being the much more populous Vienna and Herndon. Clifton's history begins pre-colonially, when the area was used as hunting grounds by the local Dogue Native American tribe.