| Rio Grande City to Harrison (Ohio) | 1,203.53 mi (1,936.89 km) |
| Rio Grande City to Harrison (Wisconsin) | 1,363.73 mi (2,194.71 km) |
| Rio Grande City to Harrisonburg (Virginia) | 1,425.74 mi (2,294.51 km) |
| Rio Grande City to Hartford (Connecticut) | 1,823.01 mi (2,933.85 km) |
| Rio Grande City to Hartford (Wisconsin) | 1,309.26 mi (2,107.05 km) |
| Rio Grande City to Hartselle (Alabama) | 899.52 mi (1,447.64 km) |
| Rio Grande City to Hartsville (Tennessee) | 1,016.29 mi (1,635.57 km) |
| Rio Grande City to Harvey (Illinois) | 1,228.87 mi (1,977.68 km) |
| Rio Grande City to Harvey (Louisiana) | 585.64 mi (942.49 km) |
| Rio Grande City to Hasbrouck Heights (New Jersey) | 1,730.14 mi (2,784.39 km) |
| Rio Grande City to Haslett (Michigan) | 1,392.96 mi (2,241.75 km) |
| Rio Grande City to Hastings (Minnesota) | 1,310.61 mi (2,109.22 km) |
| Rio Grande City to Hastings (Nebraska) | 982.49 mi (1,581.17 km) |
| Rio Grande City to Hattiesburg (Mississippi) | 667.97 mi (1,075.00 km) |
| Rio Grande City to Hauppauge (New York) | 1,769.07 mi (2,847.05 km) |
