| Didymoteicho to Cookeville (Tennessee) | 5,572.15 mi (8,967.51 km) |
| Didymoteicho to Coolidge (Arizona) | 6,651.52 mi (10,704.58 km) |
| Didymoteicho to Coon Rapids (Minnesota) | 5,398.97 mi (8,688.81 km) |
| Didymoteicho to Cooper City (Florida) | 5,840.51 mi (9,399.39 km) |
| Didymoteicho to Coos Bay (Oregon) | 6,306.37 mi (10,149.12 km) |
| Didymoteicho to Copiague (New York) | 4,875.55 mi (7,846.44 km) |
| Didymoteicho to Coppell (Texas) | 6,171.17 mi (9,931.54 km) |
| Didymoteicho to Copperas Cove (Texas) | 6,304.59 mi (10,146.25 km) |
| Didymoteicho to Coral Gables (Florida) | 5,856.23 mi (9,424.69 km) |
| Didymoteicho to Coral Springs (Florida) | 5,828.59 mi (9,380.22 km) |
| Didymoteicho to Coral Terrace (Florida) | 5,855.69 mi (9,423.82 km) |
| Didymoteicho to Coralville (Iowa) | 5,519.99 mi (8,883.57 km) |
| Didymoteicho to Coram (New York) | 4,850.67 mi (7,806.40 km) |
| Didymoteicho to Corcoran (California) | 6,671.50 mi (10,736.75 km) |
| Didymoteicho to Cordele (Georgia) | 5,706.23 mi (9,183.29 km) |
