| Napa to Cordele (Georgia) | 2,204.62 mi (3,548.00 km) |
| Napa to Corinth (Mississippi) | 1,877.32 mi (3,021.26 km) |
| Napa to Corinth (Texas) | 1,454.53 mi (2,340.85 km) |
| Napa to Cornelius (North Carolina) | 2,278.23 mi (3,666.45 km) |
| Napa to Cornelius (Oregon) | 500.42 mi (805.36 km) |
| Napa to Corning (New York) | 2,373.72 mi (3,820.13 km) |
| Napa to Corona (California) | 404.69 mi (651.29 km) |
| Napa to Coronado (California) | 484.69 mi (780.03 km) |
| Napa to Corpus Christi (Texas) | 1,611.09 mi (2,592.81 km) |
| Napa to Corsicana (Texas) | 1,514.96 mi (2,438.10 km) |
| Napa to Cortland (New York) | 2,413.10 mi (3,883.52 km) |
| Napa to Corvallis (Oregon) | 436.31 mi (702.17 km) |
| Napa to Coshocton (Ohio) | 2,148.99 mi (3,458.47 km) |
| Napa to Costa Mesa (California) | 403.05 mi (648.65 km) |
| Napa to Coto de Caza (California) | 418.29 mi (673.18 km) |
