| Champaign to Corinth (Mississippi) | 357.23 mi (574.91 km) |
| Champaign to Corinth (Texas) | 684.71 mi (1,101.93 km) |
| Champaign to Cornelius (North Carolina) | 515.20 mi (829.14 km) |
| Champaign to Cornelius (Oregon) | 1,786.97 mi (2,875.85 km) |
| Champaign to Corning (New York) | 599.95 mi (965.53 km) |
| Champaign to Corona (California) | 1,664.93 mi (2,679.44 km) |
| Champaign to Coronado (California) | 1,678.47 mi (2,701.23 km) |
| Champaign to Corpus Christi (Texas) | 1,001.21 mi (1,611.29 km) |
| Champaign to Corsicana (Texas) | 718.44 mi (1,156.21 km) |
| Champaign to Cortland (New York) | 649.73 mi (1,045.64 km) |
| Champaign to Corvallis (Oregon) | 1,799.74 mi (2,896.40 km) |
| Champaign to Coshocton (Ohio) | 339.24 mi (545.96 km) |
| Champaign to Costa Mesa (California) | 1,688.68 mi (2,717.67 km) |
| Champaign to Coto de Caza (California) | 1,673.46 mi (2,693.18 km) |
| Champaign to Cottage Grove (Minnesota) | 402.09 mi (647.10 km) |
