| Key Largo to Clemson (South Carolina) | 676.01 mi (1,087.94 km) |
| Key Largo to Clermont (Florida) | 249.04 mi (400.80 km) |
| Key Largo to Cleveland (Mississippi) | 859.40 mi (1,383.07 km) |
| Key Largo to Cleveland (Ohio) | 1,132.29 mi (1,822.24 km) |
| Key Largo to Cleveland (Tennessee) | 744.08 mi (1,197.48 km) |
| Key Largo to Cleveland Heights (Ohio) | 1,134.28 mi (1,825.45 km) |
| Key Largo to Cliffside Park (New Jersey) | 1,146.01 mi (1,844.32 km) |
| Key Largo to Clifton (Colorado) | 1,892.11 mi (3,045.05 km) |
| Key Largo to Clifton (New Jersey) | 1,145.54 mi (1,843.57 km) |
| Key Largo to Clinton (Iowa) | 1,284.55 mi (2,067.28 km) |
| Key Largo to Clinton (Maryland) | 963.52 mi (1,550.63 km) |
| Key Largo to Clinton (Mississippi) | 781.23 mi (1,257.26 km) |
| Key Largo to Clinton (Utah) | 2,122.02 mi (3,415.06 km) |
| Key Largo to Clive (Iowa) | 1,372.86 mi (2,209.41 km) |
| Key Largo to Cloquet (Minnesota) | 1,633.85 mi (2,629.44 km) |
