| Rio Grande City to Tacoma (Washington) | 1,930.48 mi (3,106.81 km) |
| Rio Grande City to Tahlequah (Oklahoma) | 696.44 mi (1,120.82 km) |
| Rio Grande City to Takoma Park (Maryland) | 1,532.21 mi (2,465.86 km) |
| Rio Grande City to Talladega (Alabama) | 903.35 mi (1,453.80 km) |
| Rio Grande City to Tallahassee (Florida) | 928.14 mi (1,493.69 km) |
| Rio Grande City to Tallmadge (Ohio) | 1,420.82 mi (2,286.58 km) |
| Rio Grande City to Tamalpais-Homestead Valley (California) | 1,592.12 mi (2,562.26 km) |
| Rio Grande City to Tamarac (Florida) | 1,149.23 mi (1,849.51 km) |
| Rio Grande City to Tamiami (Florida) | 1,143.07 mi (1,839.60 km) |
| Rio Grande City to Tampa (Florida) | 1,011.89 mi (1,628.48 km) |
| Rio Grande City to Tanaina (Alaska) | 3,359.61 mi (5,406.77 km) |
| Rio Grande City to Tanque Verde (Arizona) | 824.60 mi (1,327.06 km) |
| Rio Grande City to Tarboro (North Carolina) | 1,414.86 mi (2,277.00 km) |
| Rio Grande City to Tarpon Springs (Florida) | 993.10 mi (1,598.24 km) |
| Rio Grande City to Tarrytown (New York) | 1,746.21 mi (2,810.26 km) |
