| Katy to Carrollwood (Florida) | 813.92 mi (1,309.88 km) |
| Katy to Carson (California) | 1,342.86 mi (2,161.13 km) |
| Katy to Carson City (Nevada) | 1,501.62 mi (2,416.62 km) |
| Katy to Carteret (New Jersey) | 1,424.07 mi (2,291.81 km) |
| Katy to Cartersville (Georgia) | 713.28 mi (1,147.91 km) |
| Katy to Carthage (Missouri) | 515.91 mi (830.28 km) |
| Katy to Cary (Illinois) | 956.33 mi (1,539.07 km) |
| Katy to Cary (North Carolina) | 1,069.65 mi (1,721.44 km) |
| Katy to Casa de Oro-Mount Helix (California) | 1,262.57 mi (2,031.92 km) |
| Katy to Casa Grande (Arizona) | 963.12 mi (1,549.99 km) |
| Katy to Casas Adobes (Arizona) | 914.46 mi (1,471.69 km) |
| Katy to Cascades (Virginia) | 1,227.08 mi (1,974.79 km) |
| Katy to Casper (Wyoming) | 1,072.27 mi (1,725.64 km) |
| Katy to Casselberry (Florida) | 878.01 mi (1,413.02 km) |
| Katy to Castaic (California) | 1,369.33 mi (2,203.73 km) |
