Waldo, Arkansas. Waldo is a town in Columbia County, Arkansas, United States. The population was 1,372 at the 2010 census.
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 and 56,407 at the 2000 census.
Sandston, Virginia. Sandston is a census-designated place (CDP) in Henrico County, Virginia, United States, just outside the state capital of Richmond. The population as of the 2010 Census was 7,571.