| Rio Grande City to Ridgefield Park (New Jersey) | 1,732.40 mi (2,788.03 km) |
| Rio Grande City to Ridgeland (Mississippi) | 668.04 mi (1,075.10 km) |
| Rio Grande City to Ridgewood (New Jersey) | 1,732.23 mi (2,787.75 km) |
| Rio Grande City to Rifle (Colorado) | 1,045.30 mi (1,682.25 km) |
| Rio Grande City to Rincon (Georgia) | 1,133.53 mi (1,824.25 km) |
| Rio Grande City to Ringwood (New Jersey) | 1,728.83 mi (2,782.28 km) |
| Rio Grande City to Río Grande (Puerto Rico) | 2,171.84 mi (3,495.24 km) |
| Rio Grande City to Rio Linda (California) | 1,561.32 mi (2,512.70 km) |
| Rio Grande City to Rio Rancho (New Mexico) | 772.05 mi (1,242.50 km) |
| Rio Grande City to Rio Rico (Arizona) | 815.46 mi (1,312.36 km) |
| Rio Grande City to Ripon (California) | 1,518.00 mi (2,442.99 km) |
| Rio Grande City to River Edge (New Jersey) | 1,733.87 mi (2,790.39 km) |
| Rio Grande City to River Falls (Wisconsin) | 1,322.41 mi (2,128.21 km) |
| Rio Grande City to River Forest (Illinois) | 1,240.46 mi (1,996.33 km) |
| Rio Grande City to River Grove (Illinois) | 1,241.62 mi (1,998.19 km) |
