| Katy to Clarksdale (Mississippi) | 433.18 mi (697.14 km) |
| Katy to Clarkston (Georgia) | 734.80 mi (1,182.55 km) |
| Katy to Clarksville (Indiana) | 823.34 mi (1,325.04 km) |
| Katy to Clarksville (Tennessee) | 678.13 mi (1,091.34 km) |
| Katy to Clawson (Michigan) | 1,127.01 mi (1,813.75 km) |
| Katy to Clay (Alabama) | 605.19 mi (973.96 km) |
| Katy to Clayton (California) | 1,592.89 mi (2,563.51 km) |
| Katy to Clayton (Missouri) | 687.50 mi (1,106.43 km) |
| Katy to Clayton (North Carolina) | 1,086.89 mi (1,749.19 km) |
| Katy to Clayton (Ohio) | 952.67 mi (1,533.18 km) |
| Katy to Clearfield (Utah) | 1,196.89 mi (1,926.20 km) |
| Katy to Clearlake (California) | 1,646.48 mi (2,649.75 km) |
| Katy to Clearwater (Florida) | 800.27 mi (1,287.91 km) |
| Katy to Cleburne (Texas) | 200.44 mi (322.58 km) |
| Katy to Clemmons (North Carolina) | 992.86 mi (1,597.86 km) |
