| Lemont to Carrollwood (Florida) | 989.70 mi (1,592.77 km) |
| Lemont to Carson (California) | 1,729.60 mi (2,783.52 km) |
| Lemont to Carson City (Nevada) | 1,670.58 mi (2,688.54 km) |
| Lemont to Carteret (New Jersey) | 719.03 mi (1,157.17 km) |
| Lemont to Cartersville (Georgia) | 546.69 mi (879.82 km) |
| Lemont to Carthage (Missouri) | 460.19 mi (740.60 km) |
| Lemont to Cary (Illinois) | 39.95 mi (64.29 km) |
| Lemont to Cary (North Carolina) | 639.27 mi (1,028.81 km) |
| Lemont to Casa de Oro-Mount Helix (California) | 1,699.40 mi (2,734.92 km) |
| Lemont to Casa Grande (Arizona) | 1,434.19 mi (2,308.10 km) |
| Lemont to Casas Adobes (Arizona) | 1,418.47 mi (2,282.80 km) |
| Lemont to Cascades (Virginia) | 586.14 mi (943.30 km) |
| Lemont to Casper (Wyoming) | 939.37 mi (1,511.77 km) |
| Lemont to Casselberry (Florida) | 973.50 mi (1,566.69 km) |
| Lemont to Castaic (California) | 1,728.98 mi (2,782.53 km) |
