| Potomac to Spout Springs (North Carolina) | 277.64 mi (446.81 km) |
| Potomac to Spring (Texas) | 1,202.55 mi (1,935.32 km) |
| Potomac to Spring Creek (Nevada) | 2,023.49 mi (3,256.49 km) |
| Potomac to Spring Hill (Florida) | 789.36 mi (1,270.35 km) |
| Potomac to Spring Hill (Tennessee) | 579.00 mi (931.81 km) |
| Potomac to Spring Lake (North Carolina) | 282.61 mi (454.82 km) |
| Potomac to Spring Valley (California) | 2,250.84 mi (3,622.37 km) |
| Potomac to Spring Valley (Nevada) | 2,079.80 mi (3,347.12 km) |
| Potomac to Spring Valley (New York) | 220.75 mi (355.26 km) |
| Potomac to Springboro (Ohio) | 378.30 mi (608.81 km) |
| Potomac to Springdale (Arkansas) | 947.35 mi (1,524.61 km) |
| Potomac to Springdale (New Jersey) | 132.69 mi (213.54 km) |
| Potomac to Springdale (Ohio) | 390.51 mi (628.47 km) |
| Potomac to Springfield (Illinois) | 666.81 mi (1,073.13 km) |
| Potomac to Springfield (Massachusetts) | 324.89 mi (522.85 km) |
