| Napa to Colton (California) | 403.57 mi (649.48 km) |
| Napa to Columbia (Illinois) | 1,729.02 mi (2,782.58 km) |
| Napa to Columbia (Maryland) | 2,423.35 mi (3,900.00 km) |
| Napa to Columbia (Missouri) | 1,611.34 mi (2,593.20 km) |
| Napa to Columbia (Pennsylvania) | 2,429.50 mi (3,909.91 km) |
| Napa to Columbia (South Carolina) | 2,308.46 mi (3,715.11 km) |
| Napa to Columbia (Tennessee) | 1,943.23 mi (3,127.32 km) |
| Napa to Columbia Heights (Minnesota) | 1,560.64 mi (2,511.61 km) |
| Napa to Columbine (Colorado) | 928.85 mi (1,494.85 km) |
| Napa to Columbus (Georgia) | 2,130.28 mi (3,428.36 km) |
| Napa to Columbus (Indiana) | 1,948.14 mi (3,135.22 km) |
| Napa to Columbus (Mississippi) | 1,914.43 mi (3,080.98 km) |
| Napa to Columbus (Nebraska) | 1,335.72 mi (2,149.63 km) |
| Napa to Columbus (Ohio) | 2,092.95 mi (3,368.28 km) |
| Napa to Commack (New York) | 2,582.39 mi (4,155.95 km) |
