| Potomac to Indianapolis (Indiana) | 480.65 mi (773.53 km) |
| Potomac to Indianola (Iowa) | 877.80 mi (1,412.69 km) |
| Potomac to Indio (California) | 2,185.27 mi (3,516.86 km) |
| Potomac to Inglewood (California) | 2,292.83 mi (3,689.96 km) |
| Potomac to Inkster (Michigan) | 392.60 mi (631.84 km) |
| Potomac to Inver Grove Heights (Minnesota) | 906.99 mi (1,459.65 km) |
| Potomac to Inwood (New York) | 213.84 mi (344.15 km) |
| Potomac to Iona (Florida) | 906.46 mi (1,458.80 km) |
| Potomac to Ionia (Michigan) | 493.40 mi (794.05 km) |
| Potomac to Iowa City (Iowa) | 775.79 mi (1,248.51 km) |
| Potomac to Irmo (South Carolina) | 405.49 mi (652.58 km) |
| Potomac to Irondale (Alabama) | 648.14 mi (1,043.08 km) |
| Potomac to Ironton (Ohio) | 297.21 mi (478.31 km) |
| Potomac to Irvine (California) | 2,269.21 mi (3,651.95 km) |
| Potomac to Irving (Texas) | 1,182.20 mi (1,902.57 km) |
