| Potomac to Worthington (Ohio) | 319.19 mi (513.68 km) |
| Potomac to Wright (Florida) | 798.04 mi (1,284.32 km) |
| Potomac to Wyandanch (New York) | 235.84 mi (379.55 km) |
| Potomac to Wyandotte (Michigan) | 382.69 mi (615.88 km) |
| Potomac to Wylie (Texas) | 1,153.15 mi (1,855.82 km) |
| Potomac to Wyndham (Virginia) | 94.09 mi (151.42 km) |
| Potomac to Wyoming (Michigan) | 518.32 mi (834.16 km) |
| Potomac to Wyomissing (Pennsylvania) | 111.91 mi (180.11 km) |
| Potomac to Xenia (Ohio) | 363.35 mi (584.76 km) |
| Potomac to Yakima (Washington) | 2,229.50 mi (3,588.04 km) |
| Potomac to Yankton (South Dakota) | 1,084.58 mi (1,745.47 km) |
| Potomac to Yauco (Puerto Rico) | 1,576.73 mi (2,537.51 km) |
| Potomac to Yazoo City (Mississippi) | 851.39 mi (1,370.18 km) |
| Potomac to Yeadon (Pennsylvania) | 121.45 mi (195.45 km) |
| Potomac to Yelm (Washington) | 2,326.49 mi (3,744.12 km) |
