| Potomac to Pawtucket (Rhode Island) | 364.16 mi (586.07 km) |
| Potomac to Payson (Arizona) | 1,909.23 mi (3,072.61 km) |
| Potomac to Payson (Utah) | 1,830.83 mi (2,946.43 km) |
| Potomac to Peabody (Massachusetts) | 406.15 mi (653.64 km) |
| Potomac to Peachtree City (Georgia) | 565.23 mi (909.65 km) |
| Potomac to Peachtree Corners (Georgia) | 523.55 mi (842.57 km) |
| Potomac to Pearl (Mississippi) | 859.70 mi (1,383.56 km) |
| Potomac to Pearl City (Hawaii) | 4,820.36 mi (7,757.63 km) |
| Potomac to Pearl River (New York) | 220.15 mi (354.30 km) |
| Potomac to Pearland (Texas) | 1,220.28 mi (1,963.85 km) |
| Potomac to Pebble Creek (Florida) | 806.06 mi (1,297.22 km) |
| Potomac to Pecan Grove (Texas) | 1,237.34 mi (1,991.31 km) |
| Potomac to Pecos (Texas) | 1,569.92 mi (2,526.55 km) |
| Potomac to Peekskill (New York) | 233.51 mi (375.80 km) |
| Potomac to Pekin (Illinois) | 668.04 mi (1,075.11 km) |
