| Rio Grande City to Groveton (Virginia) | 1,520.55 mi (2,447.09 km) |
| Rio Grande City to Grovetown (Georgia) | 1,106.50 mi (1,780.73 km) |
| Rio Grande City to Guayama (Puerto Rico) | 2,165.26 mi (3,484.65 km) |
| Rio Grande City to Guaynabo (Puerto Rico) | 2,154.90 mi (3,467.98 km) |
| Rio Grande City to Gulf Shores (Alabama) | 727.44 mi (1,170.70 km) |
| Rio Grande City to Gulfport (Florida) | 995.07 mi (1,601.41 km) |
| Rio Grande City to Gulfport (Mississippi) | 654.91 mi (1,053.98 km) |
| Rio Grande City to Gunbarrel (Colorado) | 1,013.36 mi (1,630.85 km) |
| Rio Grande City to Gurnee (Illinois) | 1,264.63 mi (2,035.23 km) |
| Rio Grande City to Guthrie (Oklahoma) | 658.82 mi (1,060.27 km) |
| Rio Grande City to Guttenberg (New Jersey) | 1,731.15 mi (2,786.01 km) |
| Rio Grande City to Guymon (Oklahoma) | 729.19 mi (1,173.52 km) |
| Rio Grande City to Hacienda Heights (California) | 1,256.22 mi (2,021.69 km) |
| Rio Grande City to Hackensack (New Jersey) | 1,732.31 mi (2,787.88 km) |
| Rio Grande City to Hackettstown (New Jersey) | 1,695.26 mi (2,728.25 km) |
