Joplin is an unincorporated community and former town in Prince William County, Virginia, United States. The town was located on land taken to form Chopawamsic Recreational Demonstration AreaNational Park Service - Chopawamsic Recreational Demonstration Area and is now part of Prince William Forest Park, a National Park Service property located adjacent to Marine Corps Base Quantico. The remains of the town, now just a collection of homes, lies on a stretch of Va. 619, Joplin Road, approximately three miles west of Dumfries.
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See also Former counties, cities, and towns of Virginia