| Katy to Tacoma (Washington) | 1,861.02 mi (2,995.02 km) |
| Katy to Tahlequah (Oklahoma) | 425.82 mi (685.29 km) |
| Katy to Takoma Park (Maryland) | 1,243.79 mi (2,001.69 km) |
| Katy to Talladega (Alabama) | 625.40 mi (1,006.49 km) |
| Katy to Tallahassee (Florida) | 693.42 mi (1,115.95 km) |
| Katy to Tallmadge (Ohio) | 1,123.61 mi (1,808.28 km) |
| Katy to Tamalpais-Homestead Valley (California) | 1,624.34 mi (2,614.12 km) |
| Katy to Tamarac (Florida) | 981.41 mi (1,579.42 km) |
| Katy to Tamiami (Florida) | 982.90 mi (1,581.83 km) |
| Katy to Tampa (Florida) | 819.00 mi (1,318.05 km) |
| Katy to Tanaina (Alaska) | 3,248.38 mi (5,227.76 km) |
| Katy to Tanque Verde (Arizona) | 898.33 mi (1,445.72 km) |
| Katy to Tarboro (North Carolina) | 1,139.74 mi (1,834.24 km) |
| Katy to Tarpon Springs (Florida) | 797.88 mi (1,284.06 km) |
| Katy to Tarrytown (New York) | 1,455.23 mi (2,341.96 km) |
