| Champaign to Castle Pines (Colorado) | 881.04 mi (1,417.89 km) |
| Champaign to Castle Rock (Colorado) | 881.01 mi (1,417.84 km) |
| Champaign to Castro Valley (California) | 1,813.23 mi (2,918.11 km) |
| Champaign to Catalina Foothills (Arizona) | 1,366.13 mi (2,198.57 km) |
| Champaign to Cataño (Puerto Rico) | 1,993.74 mi (3,208.61 km) |
| Champaign to Cathedral City (California) | 1,607.81 mi (2,587.52 km) |
| Champaign to Catonsville (Maryland) | 615.47 mi (990.50 km) |
| Champaign to Cave Spring (Virginia) | 488.31 mi (785.85 km) |
| Champaign to Cayce (South Carolina) | 583.28 mi (938.70 km) |
| Champaign to Cayey (Puerto Rico) | 2,010.92 mi (3,236.26 km) |
| Champaign to Cedar City (Utah) | 1,340.84 mi (2,157.87 km) |
| Champaign to Cedar Falls (Iowa) | 273.20 mi (439.67 km) |
| Champaign to Cedar Hill (Texas) | 709.57 mi (1,141.95 km) |
| Champaign to Cedar Lake (Indiana) | 97.13 mi (156.31 km) |
| Champaign to Cedar Mill (Oregon) | 1,774.84 mi (2,856.34 km) |
