| Katy to Ridgeland (Mississippi) | 382.39 mi (615.40 km) |
| Katy to Ridgewood (New Jersey) | 1,441.22 mi (2,319.42 km) |
| Katy to Rifle (Colorado) | 954.16 mi (1,535.56 km) |
| Katy to Rincon (Georgia) | 880.69 mi (1,417.33 km) |
| Katy to Ringwood (New Jersey) | 1,437.36 mi (2,313.21 km) |
| Katy to Río Grande (Puerto Rico) | 2,041.77 mi (3,285.92 km) |
| Katy to Rio Grande City (Texas) | 297.69 mi (479.08 km) |
| Katy to Rio Linda (California) | 1,579.69 mi (2,542.27 km) |
| Katy to Rio Rancho (New Mexico) | 737.27 mi (1,186.52 km) |
| Katy to Rio Rico (Arizona) | 907.71 mi (1,460.81 km) |
| Katy to Ripon (California) | 1,547.31 mi (2,490.16 km) |
| Katy to River Edge (New Jersey) | 1,443.07 mi (2,322.40 km) |
| Katy to River Falls (Wisconsin) | 1,055.86 mi (1,699.25 km) |
| Katy to River Forest (Illinois) | 948.15 mi (1,525.90 km) |
| Katy to River Grove (Illinois) | 949.41 mi (1,527.93 km) |
