| Potomac to Anoka (Minnesota) | 931.62 mi (1,499.30 km) |
| Potomac to Ansonia (Connecticut) | 270.78 mi (435.77 km) |
| Potomac to Antelope (California) | 2,352.22 mi (3,785.53 km) |
| Potomac to Anthem (Arizona) | 1,961.33 mi (3,156.45 km) |
| Potomac to Antioch (California) | 2,388.42 mi (3,843.79 km) |
| Potomac to Antioch (Illinois) | 616.98 mi (992.93 km) |
| Potomac to Apache Junction (Arizona) | 1,941.46 mi (3,124.48 km) |
| Potomac to Apex (North Carolina) | 245.33 mi (394.83 km) |
| Potomac to Apollo Beach (Florida) | 833.04 mi (1,340.65 km) |
| Potomac to Apopka (Florida) | 754.47 mi (1,214.21 km) |
| Potomac to Apple Valley (California) | 2,218.21 mi (3,569.87 km) |
| Potomac to Apple Valley (Minnesota) | 911.55 mi (1,467.00 km) |
| Potomac to Appleton (Wisconsin) | 681.98 mi (1,097.55 km) |
| Potomac to Arbutus (Maryland) | 31.21 mi (50.22 km) |
| Potomac to Arcadia (California) | 2,272.04 mi (3,656.50 km) |
