| Rio Grande City to Pittsburg (California) | 1,563.91 mi (2,516.87 km) |
| Rio Grande City to Pittsburg (Kansas) | 799.44 mi (1,286.58 km) |
| Rio Grande City to Pittsburgh (Pennsylvania) | 1,451.88 mi (2,336.58 km) |
| Rio Grande City to Pittsfield (Massachusetts) | 1,819.49 mi (2,928.19 km) |
| Rio Grande City to Placentia (California) | 1,247.19 mi (2,007.16 km) |
| Rio Grande City to Placerville (California) | 1,531.69 mi (2,465.01 km) |
| Rio Grande City to Plainfield (Illinois) | 1,213.12 mi (1,952.33 km) |
| Rio Grande City to Plainfield (Indiana) | 1,166.35 mi (1,877.06 km) |
| Rio Grande City to Plainfield (New Jersey) | 1,706.40 mi (2,746.19 km) |
| Rio Grande City to Plainview (New York) | 1,755.63 mi (2,825.41 km) |
| Rio Grande City to Plainview (Texas) | 566.65 mi (911.94 km) |
| Rio Grande City to Plano (Illinois) | 1,207.85 mi (1,943.85 km) |
| Rio Grande City to Plano (Texas) | 477.27 mi (768.09 km) |
| Rio Grande City to Plant City (Florida) | 1,031.73 mi (1,660.41 km) |
| Rio Grande City to Plantation (Florida) | 1,149.22 mi (1,849.49 km) |
