| Grass Valley to Carrollwood (Florida) | 2,326.87 mi (3,744.73 km) |
| Grass Valley to Carson (California) | 403.19 mi (648.87 km) |
| Grass Valley to Carson City (Nevada) | 70.05 mi (112.73 km) |
| Grass Valley to Carteret (New Jersey) | 2,453.94 mi (3,949.23 km) |
| Grass Valley to Cartersville (Georgia) | 2,024.77 mi (3,258.56 km) |
| Grass Valley to Carthage (Missouri) | 1,453.37 mi (2,338.97 km) |
| Grass Valley to Cary (Illinois) | 1,719.46 mi (2,767.21 km) |
| Grass Valley to Cary (North Carolina) | 2,306.18 mi (3,711.44 km) |
| Grass Valley to Casa de Oro-Mount Helix (California) | 501.17 mi (806.55 km) |
| Grass Valley to Casa Grande (Arizona) | 677.34 mi (1,090.07 km) |
| Grass Valley to Casas Adobes (Arizona) | 735.91 mi (1,184.33 km) |
| Grass Valley to Cascades (Virginia) | 2,316.86 mi (3,728.62 km) |
| Grass Valley to Casper (Wyoming) | 806.20 mi (1,297.45 km) |
| Grass Valley to Casselberry (Florida) | 2,370.05 mi (3,814.23 km) |
| Grass Valley to Castaic (California) | 353.88 mi (569.51 km) |
