| Castagneto Carducci to Cookeville (Tennessee) | 4,841.45 mi (7,791.57 km) |
| Castagneto Carducci to Coolidge (Arizona) | 6,034.48 mi (9,711.55 km) |
| Castagneto Carducci to Coon Rapids (Minnesota) | 4,753.59 mi (7,650.17 km) |
| Castagneto Carducci to Cooper City (Florida) | 5,052.54 mi (8,131.28 km) |
| Castagneto Carducci to Coos Bay (Oregon) | 5,837.33 mi (9,394.28 km) |
| Castagneto Carducci to Copiague (New York) | 4,128.43 mi (6,644.07 km) |
| Castagneto Carducci to Coppell (Texas) | 5,472.51 mi (8,807.15 km) |
| Castagneto Carducci to Copperas Cove (Texas) | 5,601.12 mi (9,014.12 km) |
| Castagneto Carducci to Coral Gables (Florida) | 5,067.19 mi (8,154.85 km) |
| Castagneto Carducci to Coral Springs (Florida) | 5,041.25 mi (8,113.11 km) |
| Castagneto Carducci to Coral Terrace (Florida) | 5,066.85 mi (8,154.31 km) |
| Castagneto Carducci to Coralville (Iowa) | 4,844.88 mi (7,797.08 km) |
| Castagneto Carducci to Coram (New York) | 4,103.56 mi (6,604.05 km) |
| Castagneto Carducci to Corcoran (California) | 6,128.23 mi (9,862.43 km) |
| Castagneto Carducci to Cordele (Georgia) | 4,950.03 mi (7,966.31 km) |
