| Katy to Conyers (Georgia) | 744.86 mi (1,198.74 km) |
| Katy to Cookeville (Tennessee) | 741.63 mi (1,193.53 km) |
| Katy to Coolidge (Arizona) | 949.85 mi (1,528.63 km) |
| Katy to Coon Rapids (Minnesota) | 1,071.83 mi (1,724.95 km) |
| Katy to Cooper City (Florida) | 983.00 mi (1,581.99 km) |
| Katy to Coos Bay (Oregon) | 1,820.55 mi (2,929.89 km) |
| Katy to Copiague (New York) | 1,466.47 mi (2,360.06 km) |
| Katy to Coppell (Texas) | 229.60 mi (369.50 km) |
| Katy to Copperas Cove (Texas) | 154.13 mi (248.04 km) |
| Katy to Coral Gables (Florida) | 991.74 mi (1,596.05 km) |
| Katy to Coral Springs (Florida) | 979.72 mi (1,576.70 km) |
| Katy to Coral Terrace (Florida) | 988.78 mi (1,591.28 km) |
| Katy to Coralville (Iowa) | 856.13 mi (1,377.81 km) |
| Katy to Coram (New York) | 1,490.83 mi (2,399.26 km) |
| Katy to Corcoran (California) | 1,438.60 mi (2,315.20 km) |
