| Rio Grande City to The Villages (Florida) | 1,043.99 mi (1,680.13 km) |
| Rio Grande City to The Woodlands (Texas) | 330.41 mi (531.74 km) |
| Rio Grande City to Thibodaux (Louisiana) | 541.88 mi (872.08 km) |
| Rio Grande City to Thomasville (Georgia) | 950.64 mi (1,529.90 km) |
| Rio Grande City to Thomasville (North Carolina) | 1,284.74 mi (2,067.58 km) |
| Rio Grande City to Thonotosassa (Florida) | 1,021.42 mi (1,643.81 km) |
| Rio Grande City to Thornton (Colorado) | 999.56 mi (1,608.64 km) |
| Rio Grande City to Thousand Oaks (California) | 1,309.42 mi (2,107.31 km) |
| Rio Grande City to Three Lakes (Florida) | 1,144.05 mi (1,841.17 km) |
| Rio Grande City to Tiffin (Ohio) | 1,353.52 mi (2,178.29 km) |
| Rio Grande City to Tifton (Georgia) | 988.58 mi (1,590.96 km) |
| Rio Grande City to Tigard (Oregon) | 1,864.88 mi (3,001.23 km) |
| Rio Grande City to Tillmans Corner (Alabama) | 706.21 mi (1,136.53 km) |
| Rio Grande City to Timberlake (Virginia) | 1,370.53 mi (2,205.65 km) |
| Rio Grande City to Timberlane (Louisiana) | 587.40 mi (945.33 km) |
