| Katy to Red Bank (New Jersey) | 1,425.03 mi (2,293.36 km) |
| Katy to Red Bank (Tennessee) | 715.43 mi (1,151.38 km) |
| Katy to Red Bluff (California) | 1,649.52 mi (2,654.65 km) |
| Katy to Red Hill (South Carolina) | 1,024.43 mi (1,648.67 km) |
| Katy to Red Oak (Texas) | 196.88 mi (316.84 km) |
| Katy to Red Wing (Minnesota) | 1,037.11 mi (1,669.06 km) |
| Katy to Redan (Georgia) | 737.32 mi (1,186.60 km) |
| Katy to Redding (California) | 1,664.12 mi (2,678.15 km) |
| Katy to Redland (Maryland) | 1,241.35 mi (1,997.75 km) |
| Katy to Redlands (California) | 1,282.81 mi (2,064.49 km) |
| Katy to Redmond (Oregon) | 1,707.17 mi (2,747.42 km) |
| Katy to Redmond (Washington) | 1,863.25 mi (2,998.61 km) |
| Katy to Redondo Beach (California) | 1,349.89 mi (2,172.44 km) |
| Katy to Redwood City (California) | 1,602.24 mi (2,578.56 km) |
| Katy to Reedley (California) | 1,439.45 mi (2,316.58 km) |
