| Potomac to Platteville (Wisconsin) | 738.48 mi (1,188.46 km) |
| Potomac to Plattsburgh (New York) | 437.00 mi (703.28 km) |
| Potomac to Pleasant Grove (Utah) | 1,827.42 mi (2,940.94 km) |
| Potomac to Pleasant Hill (California) | 2,403.55 mi (3,868.14 km) |
| Potomac to Pleasant Hill (Iowa) | 875.76 mi (1,409.40 km) |
| Potomac to Pleasant Prairie (Wisconsin) | 609.42 mi (980.77 km) |
| Potomac to Pleasant View (Utah) | 1,832.28 mi (2,948.76 km) |
| Potomac to Pleasanton (California) | 2,398.86 mi (3,860.59 km) |
| Potomac to Pleasanton (Texas) | 1,398.89 mi (2,251.29 km) |
| Potomac to Pleasantville (New Jersey) | 145.68 mi (234.45 km) |
| Potomac to Plover (Wisconsin) | 738.21 mi (1,188.04 km) |
| Potomac to Plum (Pennsylvania) | 170.26 mi (274.01 km) |
| Potomac to Plymouth (Indiana) | 507.64 mi (816.97 km) |
| Potomac to Plymouth (Minnesota) | 930.22 mi (1,497.05 km) |
| Potomac to Pocatello (Idaho) | 1,846.25 mi (2,971.25 km) |
