| Cahokia to Commerce City (Colorado) | 789.19 mi (1,270.08 km) |
| Cahokia to Compton (California) | 1,589.71 mi (2,558.39 km) |
| Cahokia to Comstock Park (Michigan) | 388.70 mi (625.55 km) |
| Cahokia to Concord (California) | 1,718.04 mi (2,764.93 km) |
| Cahokia to Concord (Missouri) | 10.31 mi (16.59 km) |
| Cahokia to Concord (New Hampshire) | 1,021.90 mi (1,644.58 km) |
| Cahokia to Concord (North Carolina) | 570.10 mi (917.48 km) |
| Cahokia to Conneaut (Ohio) | 557.12 mi (896.60 km) |
| Cahokia to Connersville (Indiana) | 280.42 mi (451.30 km) |
| Cahokia to Conroe (Texas) | 644.31 mi (1,036.92 km) |
| Cahokia to Converse (Texas) | 779.07 mi (1,253.79 km) |
| Cahokia to Conway (Arkansas) | 272.33 mi (438.27 km) |
| Cahokia to Conway (Florida) | 861.33 mi (1,386.18 km) |
| Cahokia to Conway (South Carolina) | 700.77 mi (1,127.78 km) |
| Cahokia to Conyers (Georgia) | 483.22 mi (777.67 km) |
