| Rockford to Cold Springs (Nevada) | 1,613.38 mi (2,596.48 km) |
| Rockford to Coldwater (Michigan) | 209.49 mi (337.14 km) |
| Rockford to Colesville (Maryland) | 668.73 mi (1,076.21 km) |
| Rockford to College (Alaska) | 2,727.76 mi (4,389.90 km) |
| Rockford to College Park (Georgia) | 646.11 mi (1,039.82 km) |
| Rockford to College Park (Maryland) | 674.15 mi (1,084.93 km) |
| Rockford to College Station (Texas) | 900.42 mi (1,449.08 km) |
| Rockford to Collegedale (Tennessee) | 542.87 mi (873.66 km) |
| Rockford to Colleyville (Texas) | 783.35 mi (1,260.68 km) |
| Rockford to Collierville (Tennessee) | 499.51 mi (803.89 km) |
| Rockford to Collinsville (Illinois) | 252.44 mi (406.26 km) |
| Rockford to Colonia (New Jersey) | 771.74 mi (1,241.99 km) |
| Rockford to Colonial Heights (Virginia) | 708.37 mi (1,140.01 km) |
| Rockford to Colonial Park (Pennsylvania) | 650.08 mi (1,046.20 km) |
| Rockford to Colorado Springs (Colorado) | 855.16 mi (1,376.25 km) |
