| Potomac to La Crescenta-Montrose (California) | 2,280.26 mi (3,669.72 km) |
| Potomac to La Crosse (Wisconsin) | 798.04 mi (1,284.32 km) |
| Potomac to La Grande (Oregon) | 2,115.25 mi (3,404.17 km) |
| Potomac to La Grange (Illinois) | 593.58 mi (955.28 km) |
| Potomac to La Grange Park (Illinois) | 593.93 mi (955.83 km) |
| Potomac to La Habra (California) | 2,272.49 mi (3,657.23 km) |
| Potomac to La Homa (Texas) | 1,506.99 mi (2,425.27 km) |
| Potomac to La Marque (Texas) | 1,212.67 mi (1,951.60 km) |
| Potomac to La Mesa (California) | 2,252.17 mi (3,624.51 km) |
| Potomac to La Mirada (California) | 2,276.22 mi (3,663.23 km) |
| Potomac to La Palma (California) | 2,279.20 mi (3,668.01 km) |
| Potomac to La Porte (Indiana) | 532.25 mi (856.58 km) |
| Potomac to La Porte (Texas) | 1,202.57 mi (1,935.35 km) |
| Potomac to La Presa (California) | 2,252.79 mi (3,625.51 km) |
| Potomac to La Puente (California) | 2,270.03 mi (3,653.26 km) |
