| Rio Grande City to Hutchinson (Kansas) | 809.19 mi (1,302.27 km) |
| Rio Grande City to Hutchinson (Minnesota) | 1,302.15 mi (2,095.61 km) |
| Rio Grande City to Hutto (Texas) | 297.63 mi (478.99 km) |
| Rio Grande City to Hyattsville (Maryland) | 1,533.85 mi (2,468.49 km) |
| Rio Grande City to Hybla Valley (Virginia) | 1,520.92 mi (2,447.68 km) |
| Rio Grande City to Idaho Falls (Idaho) | 1,395.04 mi (2,245.09 km) |
| Rio Grande City to Idylwood (Virginia) | 1,519.62 mi (2,445.59 km) |
| Rio Grande City to Ilchester (Maryland) | 1,551.05 mi (2,496.17 km) |
| Rio Grande City to Immokalee (Florida) | 1,075.78 mi (1,731.29 km) |
| Rio Grande City to Imperial (California) | 1,098.95 mi (1,768.58 km) |
| Rio Grande City to Imperial Beach (California) | 1,178.65 mi (1,896.85 km) |
| Rio Grande City to Independence (Kentucky) | 1,198.43 mi (1,928.68 km) |
| Rio Grande City to Independence (Missouri) | 915.23 mi (1,472.92 km) |
| Rio Grande City to Indian Trail (North Carolina) | 1,232.36 mi (1,983.30 km) |
| Rio Grande City to Indiana (Pennsylvania) | 1,494.26 mi (2,404.78 km) |
