| Champaign to Cicero (Illinois) | 122.53 mi (197.19 km) |
| Champaign to Cimarron Hills (Colorado) | 878.90 mi (1,414.46 km) |
| Champaign to Cincinnati (Ohio) | 211.45 mi (340.29 km) |
| Champaign to Cinco Ranch (Texas) | 832.12 mi (1,339.17 km) |
| Champaign to Circleville (Ohio) | 285.35 mi (459.23 km) |
| Champaign to Citrus (California) | 1,675.03 mi (2,695.70 km) |
| Champaign to Citrus Heights (California) | 1,755.14 mi (2,824.63 km) |
| Champaign to Citrus Park (Florida) | 893.30 mi (1,437.62 km) |
| Champaign to Claiborne (Louisiana) | 567.06 mi (912.59 km) |
| Champaign to Claremont (California) | 1,665.61 mi (2,680.55 km) |
| Champaign to Claremont (New Hampshire) | 850.46 mi (1,368.68 km) |
| Champaign to Claremore (Oklahoma) | 476.72 mi (767.21 km) |
| Champaign to Clarksburg (Maryland) | 588.27 mi (946.73 km) |
| Champaign to Clarksburg (West Virginia) | 426.36 mi (686.15 km) |
| Champaign to Clarksdale (Mississippi) | 428.14 mi (689.02 km) |
