Cascades is a census-designated place (CDP) in Loudoun County, Virginia. The population as of the 2010 United States Census was 11,912. Along with nearby Countryside and Lowes Island, it's considered one of the three main components of the Potomac Falls community (ZIP code 20165).
- Virginia Trend Report 2: State and Complete Places (Sub-state 2010 Census Data). Missouri Census Data Center. Accessed 2011-02-25.