| Potomac to Lewiston (Idaho) | 2,060.71 mi (3,316.39 km) |
| Potomac to Lewiston (Maine) | 504.67 mi (812.19 km) |
| Potomac to Lewisville (North Carolina) | 267.55 mi (430.58 km) |
| Potomac to Lewisville (Texas) | 1,177.04 mi (1,894.26 km) |
| Potomac to Lexington (Kentucky) | 398.24 mi (640.90 km) |
| Potomac to Lexington (Nebraska) | 1,198.32 mi (1,928.50 km) |
| Potomac to Lexington (North Carolina) | 278.75 mi (448.60 km) |
| Potomac to Lexington (South Carolina) | 412.86 mi (664.43 km) |
| Potomac to Lexington Park (Maryland) | 66.44 mi (106.92 km) |
| Potomac to Liberal (Kansas) | 1,295.19 mi (2,084.41 km) |
| Potomac to Liberty (Missouri) | 921.97 mi (1,483.78 km) |
| Potomac to Liberty Lake (Washington) | 2,067.21 mi (3,326.85 km) |
| Potomac to Liberty Triangle (Florida) | 744.14 mi (1,197.58 km) |
| Potomac to Libertyville (Illinois) | 607.75 mi (978.08 km) |
| Potomac to Lighthouse Point (Florida) | 895.77 mi (1,441.60 km) |
