| Potomac to El Segundo (California) | 2,296.88 mi (3,696.48 km) |
| Potomac to El Sobrante (California) | 2,247.67 mi (3,617.28 km) |
| Potomac to Eldersburg (Maryland) | 29.89 mi (48.10 km) |
| Potomac to Elfers (Florida) | 810.75 mi (1,304.78 km) |
| Potomac to Elgin (Illinois) | 620.17 mi (998.07 km) |
| Potomac to Elizabeth (New Jersey) | 195.95 mi (315.36 km) |
| Potomac to Elizabeth City (North Carolina) | 195.10 mi (313.98 km) |
| Potomac to Elizabethton (Tennessee) | 331.98 mi (534.27 km) |
| Potomac to Elizabethtown (Kentucky) | 478.88 mi (770.68 km) |
| Potomac to Elizabethtown (Pennsylvania) | 84.85 mi (136.56 km) |
| Potomac to Elk City (Oklahoma) | 1,245.83 mi (2,004.97 km) |
| Potomac to Elk Grove (California) | 2,358.77 mi (3,796.08 km) |
| Potomac to Elk Grove Village (Illinois) | 603.20 mi (970.75 km) |
| Potomac to Elk Plain (Washington) | 2,313.87 mi (3,723.82 km) |
| Potomac to Elk River (Minnesota) | 942.76 mi (1,517.22 km) |
