| Cahokia to Cookeville (Tennessee) | 305.91 mi (492.31 km) |
| Cahokia to Coolidge (Arizona) | 1,255.11 mi (2,019.91 km) |
| Cahokia to Coon Rapids (Minnesota) | 484.20 mi (779.24 km) |
| Cahokia to Cooper City (Florida) | 1,038.64 mi (1,671.53 km) |
| Cahokia to Coos Bay (Oregon) | 1,794.43 mi (2,887.85 km) |
| Cahokia to Copiague (New York) | 903.80 mi (1,454.52 km) |
| Cahokia to Coppell (Texas) | 543.34 mi (874.43 km) |
| Cahokia to Copperas Cove (Texas) | 675.49 mi (1,087.09 km) |
| Cahokia to Coral Gables (Florida) | 1,059.42 mi (1,704.97 km) |
| Cahokia to Coral Springs (Florida) | 1,026.32 mi (1,651.70 km) |
| Cahokia to Coral Terrace (Florida) | 1,055.82 mi (1,699.19 km) |
| Cahokia to Coralville (Iowa) | 229.11 mi (368.71 km) |
| Cahokia to Coram (New York) | 924.99 mi (1,488.63 km) |
| Cahokia to Corcoran (California) | 1,616.52 mi (2,601.54 km) |
| Cahokia to Cordele (Georgia) | 582.12 mi (936.83 km) |
