| Rio Grande City to Humble (Texas) | 330.34 mi (531.63 km) |
| Rio Grande City to Hunters Creek (Florida) | 1,074.53 mi (1,729.30 km) |
| Rio Grande City to Huntersville (North Carolina) | 1,230.52 mi (1,980.33 km) |
| Rio Grande City to Huntington (Indiana) | 1,257.92 mi (2,024.43 km) |
| Rio Grande City to Huntington (Virginia) | 1,522.70 mi (2,450.54 km) |
| Rio Grande City to Huntington (West Virginia) | 1,263.18 mi (2,032.89 km) |
| Rio Grande City to Huntington Beach (California) | 1,250.97 mi (2,013.24 km) |
| Rio Grande City to Huntington Park (California) | 1,269.01 mi (2,042.28 km) |
| Rio Grande City to Huntington Station (New York) | 1,760.72 mi (2,833.60 km) |
| Rio Grande City to Huntley (Illinois) | 1,238.87 mi (1,993.76 km) |
| Rio Grande City to Huntsville (Alabama) | 923.70 mi (1,486.56 km) |
| Rio Grande City to Huntsville (Texas) | 358.23 mi (576.51 km) |
| Rio Grande City to Huron (South Dakota) | 1,242.87 mi (2,000.21 km) |
| Rio Grande City to Hurricane (Utah) | 1,129.77 mi (1,818.19 km) |
| Rio Grande City to Hurst (Texas) | 456.70 mi (734.99 km) |
