Population Demographics for Waldo, Arkansas in 2016 and 2017.
Reston, Virginia. Reston is a census-designated place (CDP) in Fairfax County, Virginia, United States, within the Washington, D.C. metropolitan area. The population was 58,404 at the 2010 census.
Fairfax County, officially the County of Fairfax, is a county in the Commonwealth of Virginia. As of the 2010 census, the population was 1,081,726, in 2015, it was estimated at 1,142,234, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.6% of Virginia's population.