| Potomac to Los Alamitos (California) | 2,281.51 mi (3,671.74 km) |
| Potomac to Los Alamos (New Mexico) | 1,603.27 mi (2,580.21 km) |
| Potomac to Los Altos (California) | 2,416.09 mi (3,888.33 km) |
| Potomac to Los Angeles (California) | 2,292.31 mi (3,689.11 km) |
| Potomac to Los Banos (California) | 2,356.11 mi (3,791.79 km) |
| Potomac to Los Gatos (California) | 2,411.49 mi (3,880.92 km) |
| Potomac to Los Lunas (New Mexico) | 1,652.50 mi (2,659.44 km) |
| Potomac to Los Osos (California) | 2,393.10 mi (3,851.32 km) |
| Potomac to Loudoun Valley Estates (Virginia) | 16.90 mi (27.19 km) |
| Potomac to Louisville (Colorado) | 1,485.64 mi (2,390.91 km) |
| Potomac to Louisville (Kentucky) | 460.14 mi (740.53 km) |
| Potomac to Lovejoy (Georgia) | 552.65 mi (889.41 km) |
| Potomac to Loveland (Colorado) | 1,478.17 mi (2,378.89 km) |
| Potomac to Loveland (Ohio) | 379.66 mi (611.00 km) |
| Potomac to Loves Park (Illinois) | 659.03 mi (1,060.61 km) |
