| Civita Castellana to Carson (California) | 6,319.89 mi (10,170.88 km) |
| Civita Castellana to Carson City (Nevada) | 6,060.41 mi (9,753.29 km) |
| Civita Castellana to Carteret (New Jersey) | 4,278.05 mi (6,884.85 km) |
| Civita Castellana to Cartersville (Georgia) | 5,007.66 mi (8,059.05 km) |
| Civita Castellana to Carthage (Missouri) | 5,272.50 mi (8,485.28 km) |
| Civita Castellana to Cary (Illinois) | 4,799.40 mi (7,723.88 km) |
| Civita Castellana to Cary (North Carolina) | 4,672.69 mi (7,519.97 km) |
| Civita Castellana to Casa de Oro-Mount Helix (California) | 6,338.88 mi (10,201.45 km) |
| Civita Castellana to Casa Grande (Arizona) | 6,151.89 mi (9,900.52 km) |
| Civita Castellana to Casas Adobes (Arizona) | 6,155.79 mi (9,906.79 km) |
| Civita Castellana to Cascades (Virginia) | 4,476.44 mi (7,204.13 km) |
| Civita Castellana to Casper (Wyoming) | 5,433.82 mi (8,744.89 km) |
| Civita Castellana to Casselberry (Florida) | 5,092.69 mi (8,195.89 km) |
| Civita Castellana to Castaic (California) | 6,295.01 mi (10,130.85 km) |
| Civita Castellana to Castle Pines (Colorado) | 5,558.30 mi (8,945.22 km) |
