Lake Ridge is a census-designated place (CDP) in Prince William County, Virginia, United States.

Lake Ridge was started in the late 1960s when Sorensen Construction Corporation began building in the area now known as East Lake Ridge.

By 1969, the first five developments had begun, named Thousand Oaks, The Point, Plantation Harbor, The Village of Lake Ridge, and The Hamlet.

[3] Lake Ridge Parks and Recreation was formed in 1972 as the HOA for the area.

Lake Ridge has about 7700 housing units, in more than 70 subdivisions and 9 condominium complexes.

There were 11,265 housing units, at an average density of 1,367.1 per square mile (527.8/km2).