| Katy to Cadillac (Michigan) | 1,150.34 mi (1,851.29 km) |
| Katy to Caguas (Puerto Rico) | 2,035.10 mi (3,275.18 km) |
| Katy to Cahokia (Illinois) | 686.70 mi (1,105.14 km) |
| Katy to Calabasas (California) | 1,368.60 mi (2,202.55 km) |
| Katy to Caldwell (Idaho) | 1,491.27 mi (2,399.97 km) |
| Katy to Caledonia (Wisconsin) | 1,000.96 mi (1,610.89 km) |
| Katy to Calera (Alabama) | 582.93 mi (938.14 km) |
| Katy to Calexico (California) | 1,176.70 mi (1,893.72 km) |
| Katy to Calhoun (Georgia) | 714.87 mi (1,150.48 km) |
| Katy to California (Maryland) | 1,249.98 mi (2,011.65 km) |
| Katy to California City (California) | 1,333.75 mi (2,146.47 km) |
| Katy to Callaway (Florida) | 615.51 mi (990.57 km) |
| Katy to Calumet City (Illinois) | 938.77 mi (1,510.81 km) |
| Katy to Calverton (Maryland) | 1,248.67 mi (2,009.53 km) |
| Katy to Camano (Washington) | 1,895.91 mi (3,051.17 km) |
