| Cahokia to Cicero (Illinois) | 260.07 mi (418.54 km) |
| Cahokia to Cimarron Hills (Colorado) | 782.27 mi (1,258.94 km) |
| Cahokia to Cincinnati (Ohio) | 307.80 mi (495.35 km) |
| Cahokia to Cinco Ranch (Texas) | 687.88 mi (1,107.03 km) |
| Cahokia to Circleville (Ohio) | 395.09 mi (635.83 km) |
| Cahokia to Citrus (California) | 1,566.28 mi (2,520.69 km) |
| Cahokia to Citrus Heights (California) | 1,670.95 mi (2,689.14 km) |
| Cahokia to Citrus Park (Florida) | 847.09 mi (1,363.26 km) |
| Cahokia to Claiborne (Louisiana) | 431.58 mi (694.57 km) |
| Cahokia to Claremont (California) | 1,556.68 mi (2,505.23 km) |
| Cahokia to Claremont (New Hampshire) | 986.07 mi (1,586.93 km) |
| Cahokia to Claremore (Oklahoma) | 335.95 mi (540.66 km) |
| Cahokia to Clarksburg (Maryland) | 695.33 mi (1,119.02 km) |
| Cahokia to Clarksburg (West Virginia) | 531.86 mi (855.94 km) |
| Cahokia to Clarksdale (Mississippi) | 302.83 mi (487.36 km) |
