| Potomac to Wanaque (New Jersey) | 208.02 mi (334.77 km) |
| Potomac to Wantagh (New York) | 226.38 mi (364.33 km) |
| Potomac to Warner Robins (Georgia) | 572.02 mi (920.59 km) |
| Potomac to Warr Acres (Oklahoma) | 1,145.89 mi (1,844.12 km) |
| Potomac to Warren (Michigan) | 388.41 mi (625.08 km) |
| Potomac to Warren (Ohio) | 245.46 mi (395.03 km) |
| Potomac to Warrensburg (Missouri) | 888.02 mi (1,429.14 km) |
| Potomac to Warrensville Heights (Ohio) | 283.02 mi (455.48 km) |
| Potomac to Warrenville (Illinois) | 609.31 mi (980.60 km) |
| Potomac to Warrington (Florida) | 826.43 mi (1,330.01 km) |
| Potomac to Warsaw (Indiana) | 482.11 mi (775.88 km) |
| Potomac to Warwick (Rhode Island) | 355.67 mi (572.40 km) |
| Potomac to Wasco (California) | 2,309.10 mi (3,716.14 km) |
| Potomac to Washington (District of Columbia) | 12.19 mi (19.62 km) |
| Potomac to Washington (Illinois) | 659.02 mi (1,060.59 km) |
