| Effingham to Chicago Ridge (Illinois) | 183.01 mi (294.53 km) |
| Effingham to Chickasha (Oklahoma) | 589.24 mi (948.28 km) |
| Effingham to Chico (California) | 1,765.33 mi (2,841.02 km) |
| Effingham to Chicopee (Massachusetts) | 862.43 mi (1,387.95 km) |
| Effingham to Chillicothe (Ohio) | 297.75 mi (479.18 km) |
| Effingham to Chillum (Maryland) | 620.64 mi (998.83 km) |
| Effingham to Chino (California) | 1,646.96 mi (2,650.52 km) |
| Effingham to Chino Hills (California) | 1,650.98 mi (2,656.99 km) |
| Effingham to Chino Valley (Arizona) | 1,347.49 mi (2,168.57 km) |
| Effingham to Chippewa Falls (Wisconsin) | 427.33 mi (687.72 km) |
| Effingham to Choctaw (Oklahoma) | 540.70 mi (870.17 km) |
| Effingham to Chowchilla (California) | 1,719.23 mi (2,766.83 km) |
| Effingham to Christiansburg (Virginia) | 463.25 mi (745.53 km) |
| Effingham to Chubbuck (Idaho) | 1,269.28 mi (2,042.71 km) |
| Effingham to Chula Vista (California) | 1,647.89 mi (2,652.02 km) |
