| Napa to Indianapolis (Indiana) | 1,929.84 mi (3,105.78 km) |
| Napa to Indianola (Iowa) | 1,532.22 mi (2,465.87 km) |
| Napa to Indio (California) | 462.75 mi (744.73 km) |
| Napa to Inglewood (California) | 372.35 mi (599.24 km) |
| Napa to Inkster (Michigan) | 2,054.84 mi (3,306.95 km) |
| Napa to Inver Grove Heights (Minnesota) | 1,567.93 mi (2,523.34 km) |
| Napa to Inwood (New York) | 2,561.86 mi (4,122.91 km) |
| Napa to Iona (Florida) | 2,467.58 mi (3,971.19 km) |
| Napa to Ionia (Michigan) | 1,962.10 mi (3,157.70 km) |
| Napa to Iowa City (Iowa) | 1,636.80 mi (2,634.17 km) |
| Napa to Irmo (South Carolina) | 2,291.23 mi (3,687.38 km) |
| Napa to Irondale (Alabama) | 2,008.43 mi (3,232.26 km) |
| Napa to Ironton (Ohio) | 2,128.17 mi (3,424.96 km) |
| Napa to Irvine (California) | 407.27 mi (655.44 km) |
| Napa to Irving (Texas) | 1,467.09 mi (2,361.05 km) |
