| Rio Grande City to Parma (Ohio) | 1,421.51 mi (2,287.70 km) |
| Rio Grande City to Parma Heights (Ohio) | 1,420.25 mi (2,285.67 km) |
| Rio Grande City to Parole (Maryland) | 1,553.82 mi (2,500.62 km) |
| Rio Grande City to Parsippany (New Jersey) | 1,714.55 mi (2,759.30 km) |
| Rio Grande City to Pasadena (California) | 1,268.98 mi (2,042.22 km) |
| Rio Grande City to Pasadena (Maryland) | 1,559.13 mi (2,509.18 km) |
| Rio Grande City to Pasadena (Texas) | 318.41 mi (512.43 km) |
| Rio Grande City to Pasadena Hills (Florida) | 1,025.53 mi (1,650.44 km) |
| Rio Grande City to Pascagoula (Mississippi) | 682.04 mi (1,097.64 km) |
| Rio Grande City to Pasco (Washington) | 1,767.65 mi (2,844.76 km) |
| Rio Grande City to Passaic (New Jersey) | 1,727.50 mi (2,780.14 km) |
| Rio Grande City to Pataskala (Ohio) | 1,320.21 mi (2,124.67 km) |
| Rio Grande City to Patchogue (New York) | 1,776.31 mi (2,858.69 km) |
| Rio Grande City to Paterson (New Jersey) | 1,727.76 mi (2,780.56 km) |
| Rio Grande City to Patterson (California) | 1,511.56 mi (2,432.63 km) |
