| Potomac to Mill Creek (Washington) | 2,304.06 mi (3,708.03 km) |
| Potomac to Mill Creek East (Washington) | 2,303.37 mi (3,706.92 km) |
| Potomac to Mill Valley (California) | 2,428.82 mi (3,908.81 km) |
| Potomac to Millbrae (California) | 2,427.55 mi (3,906.76 km) |
| Potomac to Millbrook (Alabama) | 682.91 mi (1,099.04 km) |
| Potomac to Millcreek (Utah) | 1,828.90 mi (2,943.33 km) |
| Potomac to Milledgeville (Georgia) | 530.56 mi (853.86 km) |
| Potomac to Miller Place (New York) | 259.37 mi (417.42 km) |
| Potomac to Millington (Tennessee) | 743.40 mi (1,196.39 km) |
| Potomac to Millville (New Jersey) | 117.39 mi (188.93 km) |
| Potomac to Milpitas (California) | 2,404.05 mi (3,868.95 km) |
| Potomac to Milton (Georgia) | 519.01 mi (835.27 km) |
| Potomac to Milwaukee (Wisconsin) | 626.65 mi (1,008.50 km) |
| Potomac to Milwaukie (Oregon) | 2,334.14 mi (3,756.44 km) |
| Potomac to Minden (Louisiana) | 1,001.56 mi (1,611.85 km) |
