| Castelli Calepio to Cookeville (Tennessee) | 4,724.61 mi (7,603.53 km) |
| Castelli Calepio to Coolidge (Arizona) | 5,890.63 mi (9,480.05 km) |
| Castelli Calepio to Coon Rapids (Minnesota) | 4,613.45 mi (7,424.62 km) |
| Castelli Calepio to Cooper City (Florida) | 4,962.88 mi (7,986.98 km) |
| Castelli Calepio to Coos Bay (Oregon) | 5,673.95 mi (9,131.34 km) |
| Castelli Calepio to Copiague (New York) | 4,017.10 mi (6,464.89 km) |
| Castelli Calepio to Coppell (Texas) | 5,346.29 mi (8,604.03 km) |
| Castelli Calepio to Copperas Cove (Texas) | 5,476.43 mi (8,813.46 km) |
| Castelli Calepio to Coral Gables (Florida) | 4,978.24 mi (8,011.71 km) |
| Castelli Calepio to Coral Springs (Florida) | 4,951.17 mi (7,968.14 km) |
| Castelli Calepio to Coral Terrace (Florida) | 4,977.77 mi (8,010.95 km) |
| Castelli Calepio to Coralville (Iowa) | 4,711.64 mi (7,582.65 km) |
| Castelli Calepio to Coram (New York) | 3,992.20 mi (6,424.82 km) |
| Castelli Calepio to Corcoran (California) | 5,973.23 mi (9,612.98 km) |
| Castelli Calepio to Cordele (Georgia) | 4,843.37 mi (7,794.65 km) |
