| Potomac to East Providence (Rhode Island) | 362.57 mi (583.49 km) |
| Potomac to East Rancho Dominguez (California) | 2,286.39 mi (3,679.59 km) |
| Potomac to East Renton Highlands (Washington) | 2,299.42 mi (3,700.56 km) |
| Potomac to East Ridge (Tennessee) | 522.69 mi (841.18 km) |
| Potomac to East Riverdale (Maryland) | 15.67 mi (25.22 km) |
| Potomac to East San Gabriel (California) | 2,274.73 mi (3,660.82 km) |
| Potomac to East St. Louis (Illinois) | 696.38 mi (1,120.72 km) |
| Potomac to East Wenatchee (Washington) | 2,215.29 mi (3,565.16 km) |
| Potomac to Eastern Goleta Valley (California) | 2,358.12 mi (3,795.03 km) |
| Potomac to Eastlake (Ohio) | 288.36 mi (464.07 km) |
| Potomac to Eastmont (Washington) | 2,302.99 mi (3,706.30 km) |
| Potomac to Easton (Maryland) | 62.65 mi (100.83 km) |
| Potomac to Easton (Pennsylvania) | 155.87 mi (250.85 km) |
| Potomac to Eastpointe (Michigan) | 383.95 mi (617.91 km) |
| Potomac to Eastvale (California) | 2,251.79 mi (3,623.90 km) |
