| Potomac to Yonkers (New York) | 221.00 mi (355.67 km) |
| Potomac to Yorba Linda (California) | 2,263.82 mi (3,643.26 km) |
| Potomac to York (Pennsylvania) | 70.19 mi (112.96 km) |
| Potomac to Yorktown (Indiana) | 449.96 mi (724.15 km) |
| Potomac to Yorkville (Illinois) | 619.78 mi (997.44 km) |
| Potomac to Youngstown (Ohio) | 232.53 mi (374.22 km) |
| Potomac to Youngsville (Louisiana) | 1,041.35 mi (1,675.89 km) |
| Potomac to Ypsilanti (Michigan) | 404.00 mi (650.18 km) |
| Potomac to Yuba City (California) | 2,359.38 mi (3,797.05 km) |
| Potomac to Yucaipa (California) | 2,221.24 mi (3,574.74 km) |
| Potomac to Yucca Valley (California) | 2,185.77 mi (3,517.66 km) |
| Potomac to Yukon (Oklahoma) | 1,153.85 mi (1,856.94 km) |
| Potomac to Yulee (Florida) | 629.62 mi (1,013.28 km) |
| Potomac to Yuma (Arizona) | 2,124.04 mi (3,418.32 km) |
| Potomac to Zachary (Louisiana) | 978.07 mi (1,574.05 km) |
