| Potomac to Cottage Grove (Minnesota) | 900.72 mi (1,449.57 km) |
| Potomac to Cottage Grove (Oregon) | 2,368.94 mi (3,812.44 km) |
| Potomac to Cottage Lake (Washington) | 2,298.34 mi (3,698.82 km) |
| Potomac to Cottonwood (Arizona) | 1,934.82 mi (3,113.79 km) |
| Potomac to Cottonwood Heights (Utah) | 1,828.85 mi (2,943.24 km) |
| Potomac to Council Bluffs (Iowa) | 995.59 mi (1,602.25 km) |
| Potomac to Country Club (Florida) | 921.19 mi (1,482.51 km) |
| Potomac to Country Club Hills (Illinois) | 581.85 mi (936.40 km) |
| Potomac to Country Walk (Florida) | 943.52 mi (1,518.45 km) |
| Potomac to Covina (California) | 2,264.79 mi (3,644.82 km) |
| Potomac to Covington (Georgia) | 525.86 mi (846.29 km) |
| Potomac to Covington (Kentucky) | 392.94 mi (632.37 km) |
| Potomac to Covington (Louisiana) | 939.29 mi (1,511.64 km) |
| Potomac to Covington (Washington) | 2,300.59 mi (3,702.44 km) |
| Potomac to Cranston (Rhode Island) | 355.40 mi (571.96 km) |
