| Cahokia to Castle Rock (Colorado) | 789.38 mi (1,270.39 km) |
| Cahokia to Castro Valley (California) | 1,724.97 mi (2,776.07 km) |
| Cahokia to Catalina Foothills (Arizona) | 1,239.86 mi (1,995.35 km) |
| Cahokia to Cataño (Puerto Rico) | 2,003.75 mi (3,224.73 km) |
| Cahokia to Cathedral City (California) | 1,496.00 mi (2,407.58 km) |
| Cahokia to Catonsville (Maryland) | 723.32 mi (1,164.07 km) |
| Cahokia to Cave Spring (Virginia) | 561.99 mi (904.43 km) |
| Cahokia to Cayce (South Carolina) | 600.35 mi (966.17 km) |
| Cahokia to Cayey (Puerto Rico) | 2,019.79 mi (3,250.53 km) |
| Cahokia to Cedar City (Utah) | 1,243.85 mi (2,001.79 km) |
| Cahokia to Cedar Falls (Iowa) | 298.15 mi (479.83 km) |
| Cahokia to Cedar Hill (Texas) | 561.89 mi (904.28 km) |
| Cahokia to Cedar Lake (Indiana) | 242.06 mi (389.56 km) |
| Cahokia to Cedar Mill (Oregon) | 1,728.24 mi (2,781.33 km) |
| Cahokia to Cedar Park (Texas) | 705.67 mi (1,135.66 km) |
