| Napa to Central Point (Oregon) | 283.65 mi (456.49 km) |
| Napa to Centralia (Illinois) | 1,786.45 mi (2,875.02 km) |
| Napa to Centralia (Washington) | 583.09 mi (938.39 km) |
| Napa to Centreville (Virginia) | 2,398.88 mi (3,860.62 km) |
| Napa to Ceres (California) | 87.62 mi (141.01 km) |
| Napa to Cerritos (California) | 386.58 mi (622.15 km) |
| Napa to Chalco (Nebraska) | 1,399.00 mi (2,251.47 km) |
| Napa to Chalmette (Louisiana) | 1,926.23 mi (3,099.97 km) |
| Napa to Chambersburg (Pennsylvania) | 2,370.90 mi (3,815.59 km) |
| Napa to Chamblee (Georgia) | 2,128.40 mi (3,425.32 km) |
| Napa to Champaign (Illinois) | 1,815.00 mi (2,920.95 km) |
| Napa to Champlin (Minnesota) | 1,554.80 mi (2,502.20 km) |
| Napa to Chandler (Arizona) | 679.83 mi (1,094.09 km) |
| Napa to Chanhassen (Minnesota) | 1,543.72 mi (2,484.38 km) |
| Napa to Channahon (Illinois) | 1,806.58 mi (2,907.41 km) |
