| Round Lake Beach to Cold Springs (Nevada) | 1,662.83 mi (2,676.07 km) |
| Round Lake Beach to Coldwater (Michigan) | 160.65 mi (258.54 km) |
| Round Lake Beach to Colesville (Maryland) | 622.92 mi (1,002.49 km) |
| Round Lake Beach to College (Alaska) | 2,749.71 mi (4,425.23 km) |
| Round Lake Beach to College Park (Georgia) | 635.18 mi (1,022.23 km) |
| Round Lake Beach to College Park (Maryland) | 628.45 mi (1,011.40 km) |
| Round Lake Beach to College Station (Texas) | 932.86 mi (1,501.29 km) |
| Round Lake Beach to Collegedale (Tennessee) | 531.85 mi (855.93 km) |
| Round Lake Beach to Colleyville (Texas) | 821.05 mi (1,321.36 km) |
| Round Lake Beach to Collierville (Tennessee) | 514.02 mi (827.24 km) |
| Round Lake Beach to Collinsville (Illinois) | 275.03 mi (442.61 km) |
| Round Lake Beach to Colonia (New Jersey) | 722.31 mi (1,162.44 km) |
| Round Lake Beach to Colonial Heights (Virginia) | 667.29 mi (1,073.89 km) |
| Round Lake Beach to Colonial Park (Pennsylvania) | 601.76 mi (968.45 km) |
| Round Lake Beach to Colorado Springs (Colorado) | 906.04 mi (1,458.14 km) |
