| Rio Grande City to Dover (New Hampshire) | 1,949.63 mi (3,137.62 km) |
| Rio Grande City to Dover (New Jersey) | 1,708.52 mi (2,749.60 km) |
| Rio Grande City to Dover (Ohio) | 1,393.17 mi (2,242.09 km) |
| Rio Grande City to Downers Grove (Illinois) | 1,229.07 mi (1,978.00 km) |
| Rio Grande City to Downey (California) | 1,263.42 mi (2,033.28 km) |
| Rio Grande City to Dranesville (Virginia) | 1,515.37 mi (2,438.76 km) |
| Rio Grande City to Draper (Utah) | 1,228.38 mi (1,976.89 km) |
| Rio Grande City to Drexel Heights (Arizona) | 836.88 mi (1,346.82 km) |
| Rio Grande City to Drexel Hill (Pennsylvania) | 1,643.60 mi (2,645.12 km) |
| Rio Grande City to Duarte (California) | 1,258.88 mi (2,025.96 km) |
| Rio Grande City to Dublin (California) | 1,555.47 mi (2,503.28 km) |
| Rio Grande City to Dublin (Georgia) | 1,044.97 mi (1,681.71 km) |
| Rio Grande City to Dublin (Ohio) | 1,307.65 mi (2,104.46 km) |
| Rio Grande City to Dubuque (Iowa) | 1,204.45 mi (1,938.37 km) |
| Rio Grande City to Duluth (Georgia) | 1,020.75 mi (1,642.75 km) |
