| Napa to Carrollwood (Florida) | 2,386.70 mi (3,841.02 km) |
| Napa to Carson (California) | 382.01 mi (614.78 km) |
| Napa to Carson City (Nevada) | 149.74 mi (240.98 km) |
| Napa to Carteret (New Jersey) | 2,537.95 mi (4,084.44 km) |
| Napa to Cartersville (Georgia) | 2,094.99 mi (3,371.57 km) |
| Napa to Carthage (Missouri) | 1,525.26 mi (2,454.68 km) |
| Napa to Cary (Illinois) | 1,803.60 mi (2,902.61 km) |
| Napa to Cary (North Carolina) | 2,382.28 mi (3,833.91 km) |
| Napa to Casa de Oro-Mount Helix (California) | 485.66 mi (781.60 km) |
| Napa to Casa Grande (Arizona) | 698.74 mi (1,124.52 km) |
| Napa to Casas Adobes (Arizona) | 756.99 mi (1,218.26 km) |
| Napa to Cascades (Virginia) | 2,398.24 mi (3,859.59 km) |
| Napa to Casper (Wyoming) | 893.82 mi (1,438.46 km) |
| Napa to Casselberry (Florida) | 2,432.11 mi (3,914.10 km) |
| Napa to Castaic (California) | 333.34 mi (536.46 km) |
