| Potomac to Leland (North Carolina) | 335.53 mi (539.98 km) |
| Potomac to Lemay (Missouri) | 705.31 mi (1,135.08 km) |
| Potomac to Lemon Grove (California) | 2,253.90 mi (3,627.30 km) |
| Potomac to Lemon Hill (California) | 2,360.77 mi (3,799.29 km) |
| Potomac to Lemont (Illinois) | 596.60 mi (960.14 km) |
| Potomac to Lemoore (California) | 2,316.83 mi (3,728.58 km) |
| Potomac to Lenexa (Kansas) | 944.14 mi (1,519.44 km) |
| Potomac to Lennox (California) | 2,294.05 mi (3,691.92 km) |
| Potomac to Lenoir (North Carolina) | 319.96 mi (514.93 km) |
| Potomac to Leominster (Massachusetts) | 372.99 mi (600.27 km) |
| Potomac to Leon Valley (Texas) | 1,383.87 mi (2,227.12 km) |
| Potomac to Levelland (Texas) | 1,445.79 mi (2,326.77 km) |
| Potomac to Levittown (New York) | 228.18 mi (367.22 km) |
| Potomac to Levittown (Pennsylvania) | 147.43 mi (237.26 km) |
| Potomac to Lewisburg (Tennessee) | 582.05 mi (936.71 km) |
