| Rio Grande City to Hamtramck (Michigan) | 1,420.58 mi (2,286.21 km) |
| Rio Grande City to Hanahan (South Carolina) | 1,214.89 mi (1,955.18 km) |
| Rio Grande City to Hanford (California) | 1,403.83 mi (2,259.25 km) |
| Rio Grande City to Hannibal (Missouri) | 1,015.49 mi (1,634.27 km) |
| Rio Grande City to Hanover (Pennsylvania) | 1,560.91 mi (2,512.04 km) |
| Rio Grande City to Hanover Park (Illinois) | 1,236.33 mi (1,989.68 km) |
| Rio Grande City to Happy Valley (Oregon) | 1,854.67 mi (2,984.80 km) |
| Rio Grande City to Harker Heights (Texas) | 330.88 mi (532.49 km) |
| Rio Grande City to Harlingen (Texas) | 70.83 mi (114.00 km) |
| Rio Grande City to Harper Woods (Michigan) | 1,427.23 mi (2,296.91 km) |
| Rio Grande City to Harrisburg (North Carolina) | 1,239.15 mi (1,994.22 km) |
| Rio Grande City to Harrisburg (Pennsylvania) | 1,581.57 mi (2,545.29 km) |
| Rio Grande City to Harrison (Arkansas) | 759.64 mi (1,222.53 km) |
| Rio Grande City to Harrison (New Jersey) | 1,722.68 mi (2,772.39 km) |
| Rio Grande City to Harrison (New York) | 1,751.73 mi (2,819.14 km) |
