| Potomac to West St. Paul (Minnesota) | 910.08 mi (1,464.63 km) |
| Potomac to West University Place (Texas) | 1,219.04 mi (1,961.85 km) |
| Potomac to West Valley City (Utah) | 1,838.41 mi (2,958.63 km) |
| Potomac to West Whittier-Los Nietos (California) | 2,277.61 mi (3,665.45 km) |
| Potomac to Westbrook (Maine) | 479.77 mi (772.12 km) |
| Potomac to Westbury (New York) | 225.98 mi (363.68 km) |
| Potomac to Westchase (Florida) | 818.21 mi (1,316.78 km) |
| Potomac to Westchester (Florida) | 934.82 mi (1,504.44 km) |
| Potomac to Westchester (Illinois) | 595.18 mi (957.84 km) |
| Potomac to Western Springs (Illinois) | 594.81 mi (957.25 km) |
| Potomac to Westerville (Ohio) | 314.44 mi (506.04 km) |
| Potomac to Westfield (Indiana) | 482.41 mi (776.37 km) |
| Potomac to Westfield (Massachusetts) | 317.47 mi (510.92 km) |
| Potomac to Westfield (New Jersey) | 188.89 mi (303.98 km) |
| Potomac to Westlake (Ohio) | 301.20 mi (484.73 km) |
