| Round Lake Beach to Clarksdale (Mississippi) | 581.38 mi (935.64 km) |
| Round Lake Beach to Clarkston (Georgia) | 627.52 mi (1,009.90 km) |
| Round Lake Beach to Clarksville (Indiana) | 305.62 mi (491.84 km) |
| Round Lake Beach to Clarksville (Tennessee) | 403.35 mi (649.14 km) |
| Round Lake Beach to Clawson (Michigan) | 251.54 mi (404.82 km) |
| Round Lake Beach to Clay (Alabama) | 605.30 mi (974.14 km) |
| Round Lake Beach to Clayton (California) | 1,801.25 mi (2,898.84 km) |
| Round Lake Beach to Clayton (Missouri) | 283.78 mi (456.69 km) |
| Round Lake Beach to Clayton (North Carolina) | 694.07 mi (1,117.00 km) |
| Round Lake Beach to Clayton (Ohio) | 261.13 mi (420.24 km) |
| Round Lake Beach to Clearfield (Utah) | 1,233.41 mi (1,984.99 km) |
| Round Lake Beach to Clearlake (California) | 1,813.46 mi (2,918.48 km) |
| Round Lake Beach to Clearwater (Florida) | 1,038.72 mi (1,671.66 km) |
| Round Lake Beach to Cleburne (Texas) | 860.33 mi (1,384.57 km) |
| Round Lake Beach to Clemmons (North Carolina) | 601.19 mi (967.53 km) |
