| Rio Grande City to Decatur (Alabama) | 902.51 mi (1,452.46 km) |
| Rio Grande City to Decatur (Georgia) | 1,005.91 mi (1,618.86 km) |
| Rio Grande City to Decatur (Illinois) | 1,091.10 mi (1,755.95 km) |
| Rio Grande City to Deer Park (New York) | 1,762.07 mi (2,835.78 km) |
| Rio Grande City to Deer Park (Texas) | 321.46 mi (517.33 km) |
| Rio Grande City to Deerfield (Illinois) | 1,255.14 mi (2,019.96 km) |
| Rio Grande City to Deerfield Beach (Florida) | 1,156.48 mi (1,861.17 km) |
| Rio Grande City to Defiance (Ohio) | 1,318.34 mi (2,121.66 km) |
| Rio Grande City to DeForest (Wisconsin) | 1,280.28 mi (2,060.41 km) |
| Rio Grande City to DeKalb (Illinois) | 1,216.97 mi (1,958.52 km) |
| Rio Grande City to Del Aire (California) | 1,275.85 mi (2,053.29 km) |
| Rio Grande City to Del City (Oklahoma) | 631.80 mi (1,016.79 km) |
| Rio Grande City to Del Rio (Texas) | 241.83 mi (389.18 km) |
| Rio Grande City to DeLand (Florida) | 1,086.97 mi (1,749.31 km) |
| Rio Grande City to Delano (California) | 1,368.55 mi (2,202.47 km) |
