| Romeoville to Chicago Ridge (Illinois) | 17.25 mi (27.76 km) |
| Romeoville to Chickasha (Oklahoma) | 700.74 mi (1,127.74 km) |
| Romeoville to Chico (California) | 1,759.75 mi (2,832.05 km) |
| Romeoville to Chicopee (Massachusetts) | 798.28 mi (1,284.71 km) |
| Romeoville to Chillicothe (Ohio) | 311.50 mi (501.30 km) |
| Romeoville to Chillum (Maryland) | 613.74 mi (987.71 km) |
| Romeoville to Chino (California) | 1,688.55 mi (2,717.46 km) |
| Romeoville to Chino Hills (California) | 1,692.64 mi (2,724.05 km) |
| Romeoville to Chino Valley (Arizona) | 1,397.23 mi (2,248.63 km) |
| Romeoville to Chippewa Falls (Wisconsin) | 281.91 mi (453.69 km) |
| Romeoville to Choctaw (Oklahoma) | 651.98 mi (1,049.27 km) |
| Romeoville to Chowchilla (California) | 1,734.26 mi (2,791.02 km) |
| Romeoville to Christiansburg (Virginia) | 514.62 mi (828.20 km) |
| Romeoville to Chubbuck (Idaho) | 1,244.27 mi (2,002.46 km) |
| Romeoville to Chula Vista (California) | 1,699.96 mi (2,735.82 km) |
