| Round Lake Beach to Chicago Ridge (Illinois) | 49.18 mi (79.15 km) |
| Round Lake Beach to Chickasha (Oklahoma) | 733.91 mi (1,181.11 km) |
| Round Lake Beach to Chico (California) | 1,755.01 mi (2,824.41 km) |
| Round Lake Beach to Chicopee (Massachusetts) | 791.88 mi (1,274.40 km) |
| Round Lake Beach to Chillicothe (Ohio) | 338.69 mi (545.07 km) |
| Round Lake Beach to Chillum (Maryland) | 627.13 mi (1,009.27 km) |
| Round Lake Beach to Chino (California) | 1,697.86 mi (2,732.45 km) |
| Round Lake Beach to Chino Hills (California) | 1,701.97 mi (2,739.05 km) |
| Round Lake Beach to Chino Valley (Arizona) | 1,409.67 mi (2,268.64 km) |
| Round Lake Beach to Chippewa Falls (Wisconsin) | 241.96 mi (389.40 km) |
| Round Lake Beach to Choctaw (Oklahoma) | 685.48 mi (1,103.18 km) |
| Round Lake Beach to Chowchilla (California) | 1,735.64 mi (2,793.25 km) |
| Round Lake Beach to Christiansburg (Virginia) | 544.82 mi (876.81 km) |
| Round Lake Beach to Chubbuck (Idaho) | 1,235.20 mi (1,987.86 km) |
| Round Lake Beach to Chula Vista (California) | 1,712.34 mi (2,755.75 km) |
