| Rio Grande City to Horizon West (Florida) | 1,064.02 mi (1,712.38 km) |
| Rio Grande City to Hormigueros (Puerto Rico) | 2,099.26 mi (3,378.43 km) |
| Rio Grande City to Horn Lake (Mississippi) | 788.17 mi (1,268.44 km) |
| Rio Grande City to Hot Springs (Arkansas) | 657.00 mi (1,057.34 km) |
| Rio Grande City to Hot Springs Village (Arkansas) | 669.36 mi (1,077.23 km) |
| Rio Grande City to Houma (Louisiana) | 542.09 mi (872.41 km) |
| Rio Grande City to Houston (Texas) | 314.84 mi (506.68 km) |
| Rio Grande City to Howard (Wisconsin) | 1,391.32 mi (2,239.11 km) |
| Rio Grande City to Huber Heights (Ohio) | 1,258.14 mi (2,024.78 km) |
| Rio Grande City to Hudson (Florida) | 998.46 mi (1,606.87 km) |
| Rio Grande City to Hudson (Ohio) | 1,426.22 mi (2,295.29 km) |
| Rio Grande City to Hudson (Wisconsin) | 1,327.69 mi (2,136.71 km) |
| Rio Grande City to Hueytown (Alabama) | 857.08 mi (1,379.34 km) |
| Rio Grande City to Hugo (Minnesota) | 1,338.02 mi (2,153.34 km) |
| Rio Grande City to Humacao (Puerto Rico) | 2,178.56 mi (3,506.06 km) |
