| Trecastagni to Cookeville (Tennessee) | 5,248.94 mi (8,447.35 km) |
| Trecastagni to Coolidge (Arizona) | 6,474.26 mi (10,419.31 km) |
| Trecastagni to Coon Rapids (Minnesota) | 5,190.54 mi (8,353.37 km) |
| Trecastagni to Cooper City (Florida) | 5,415.54 mi (8,715.47 km) |
| Trecastagni to Coos Bay (Oregon) | 6,287.16 mi (10,118.20 km) |
| Trecastagni to Copiague (New York) | 4,529.62 mi (7,289.71 km) |
| Trecastagni to Coppell (Texas) | 5,891.98 mi (9,482.23 km) |
| Trecastagni to Copperas Cove (Texas) | 6,018.31 mi (9,685.54 km) |
| Trecastagni to Coral Gables (Florida) | 5,428.85 mi (8,736.89 km) |
| Trecastagni to Coral Springs (Florida) | 5,405.02 mi (8,698.53 km) |
| Trecastagni to Coral Terrace (Florida) | 5,428.77 mi (8,736.77 km) |
| Trecastagni to Coralville (Iowa) | 5,274.11 mi (8,487.85 km) |
| Trecastagni to Coram (New York) | 4,504.87 mi (7,249.88 km) |
| Trecastagni to Corcoran (California) | 6,576.53 mi (10,583.90 km) |
| Trecastagni to Cordele (Georgia) | 5,341.80 mi (8,596.80 km) |
