It is located along U.S. Route 220 (McMullen Highway) directly southwest of the city of Cumberland and includes the former community of Roberts. The CDP of Potomac Park borders Bowling Green to the south, the Potomac River is to the east and Haystack Mountain is to the west. For many years, the community was mostly farmland but was later divided into building lots by the Buchanan, Roberts and Long families. CSX Transportation railroad tracks skirt the community along the river; in earlier years, a predecessor maintained the Roberts train station which has since been closed.
The Upper Potomac Industrial Park is located in the northern part of the community, close to Cumberland.