| Rio Grande City to Home Gardens (California) | 1,228.58 mi (1,977.20 km) |
| Rio Grande City to Homer Glen (Illinois) | 1,220.03 mi (1,963.45 km) |
| Rio Grande City to Homestead (Florida) | 1,142.58 mi (1,838.81 km) |
| Rio Grande City to Homewood (Alabama) | 868.94 mi (1,398.42 km) |
| Rio Grande City to Homewood (Illinois) | 1,225.85 mi (1,972.81 km) |
| Rio Grande City to Homosassa Springs (Florida) | 1,010.21 mi (1,625.78 km) |
| Rio Grande City to Honeygo (Maryland) | 1,573.17 mi (2,531.77 km) |
| Rio Grande City to Honolulu (Hawaii) | 3,714.74 mi (5,978.30 km) |
| Rio Grande City to Hoover (Alabama) | 866.01 mi (1,393.71 km) |
| Rio Grande City to Hopatcong (New Jersey) | 1,706.20 mi (2,745.86 km) |
| Rio Grande City to Hope Mills (North Carolina) | 1,317.69 mi (2,120.62 km) |
| Rio Grande City to Hopewell (Virginia) | 1,465.85 mi (2,359.05 km) |
| Rio Grande City to Hopkins (Minnesota) | 1,316.13 mi (2,118.11 km) |
| Rio Grande City to Hopkinsville (Kentucky) | 982.13 mi (1,580.58 km) |
| Rio Grande City to Horizon City (Texas) | 576.10 mi (927.14 km) |
