| Romeoville to Cold Springs (Nevada) | 1,666.61 mi (2,682.14 km) |
| Romeoville to Coldwater (Michigan) | 161.20 mi (259.43 km) |
| Romeoville to Colesville (Maryland) | 610.04 mi (981.76 km) |
| Romeoville to College (Alaska) | 2,791.61 mi (4,492.66 km) |
| Romeoville to College Park (Georgia) | 587.01 mi (944.69 km) |
| Romeoville to College Park (Maryland) | 615.29 mi (990.21 km) |
| Romeoville to College Station (Texas) | 888.85 mi (1,430.47 km) |
| Romeoville to Collegedale (Tennessee) | 483.62 mi (778.31 km) |
| Romeoville to Colleyville (Texas) | 781.54 mi (1,257.77 km) |
| Romeoville to Collierville (Tennessee) | 463.12 mi (745.32 km) |
| Romeoville to Collinsville (Illinois) | 227.62 mi (366.32 km) |
| Romeoville to Colonia (New Jersey) | 720.40 mi (1,159.37 km) |
| Romeoville to Colonial Heights (Virginia) | 645.17 mi (1,038.31 km) |
| Romeoville to Colonial Park (Pennsylvania) | 595.89 mi (958.98 km) |
| Romeoville to Colorado Springs (Colorado) | 897.59 mi (1,444.53 km) |
