| Potomac to Waimea (Hawaii) | 4,753.35 mi (7,649.77 km) |
| Potomac to Waipahu (Hawaii) | 4,823.86 mi (7,763.26 km) |
| Potomac to Waipio (Hawaii) | 4,822.02 mi (7,760.29 km) |
| Potomac to Wake Forest (North Carolina) | 222.86 mi (358.66 km) |
| Potomac to Wakefield (Virginia) | 13.44 mi (21.62 km) |
| Potomac to Waldorf (Maryland) | 31.69 mi (51.00 km) |
| Potomac to Walker (Michigan) | 523.12 mi (841.89 km) |
| Potomac to Walker Mill (Maryland) | 19.15 mi (30.82 km) |
| Potomac to Walla Walla (Washington) | 2,125.30 mi (3,420.33 km) |
| Potomac to Wallingford Center (Connecticut) | 285.58 mi (459.59 km) |
| Potomac to Wallington (New Jersey) | 207.12 mi (333.33 km) |
| Potomac to Walnut (California) | 2,264.97 mi (3,645.12 km) |
| Potomac to Walnut Creek (California) | 2,402.65 mi (3,866.69 km) |
| Potomac to Walnut Park (California) | 2,285.99 mi (3,678.95 km) |
| Potomac to Waltham (Massachusetts) | 389.16 mi (626.29 km) |
