| Katy to Clemson (South Carolina) | 831.91 mi (1,338.83 km) |
| Katy to Clermont (Florida) | 855.49 mi (1,376.78 km) |
| Katy to Cleveland (Mississippi) | 405.61 mi (652.76 km) |
| Katy to Cleveland (Ohio) | 1,130.08 mi (1,818.69 km) |
| Katy to Cleveland (Tennessee) | 738.98 mi (1,189.27 km) |
| Katy to Cleveland Heights (Ohio) | 1,136.23 mi (1,828.58 km) |
| Katy to Cliffside Park (New Jersey) | 1,442.40 mi (2,321.31 km) |
| Katy to Clifton (Colorado) | 962.22 mi (1,548.55 km) |
| Katy to Clifton (New Jersey) | 1,435.57 mi (2,310.33 km) |
| Katy to Clinton (Iowa) | 889.27 mi (1,431.14 km) |
| Katy to Clinton (Maryland) | 1,241.87 mi (1,998.60 km) |
| Katy to Clinton (Mississippi) | 370.22 mi (595.81 km) |
| Katy to Clinton (Utah) | 1,200.12 mi (1,931.41 km) |
| Katy to Clive (Iowa) | 824.86 mi (1,327.48 km) |
| Katy to Cloquet (Minnesota) | 1,183.54 mi (1,904.73 km) |
