| Rio Grande City to Pullman (Washington) | 1,726.86 mi (2,779.11 km) |
| Rio Grande City to Punta Gorda (Florida) | 1,035.58 mi (1,666.60 km) |
| Rio Grande City to Puyallup (Washington) | 1,921.79 mi (3,092.82 km) |
| Rio Grande City to Queen Creek (Arizona) | 900.77 mi (1,449.65 km) |
| Rio Grande City to Queens (New York) | 1,739.44 mi (2,799.35 km) |
| Rio Grande City to Quincy (Illinois) | 1,029.61 mi (1,656.99 km) |
| Rio Grande City to Quincy (Massachusetts) | 1,914.40 mi (3,080.93 km) |
| Rio Grande City to Raceland (Louisiana) | 549.88 mi (884.94 km) |
| Rio Grande City to Racine (Wisconsin) | 1,288.86 mi (2,074.21 km) |
| Rio Grande City to Radcliff (Kentucky) | 1,090.27 mi (1,754.61 km) |
| Rio Grande City to Radford (Virginia) | 1,300.84 mi (2,093.50 km) |
| Rio Grande City to Rahway (New Jersey) | 1,712.44 mi (2,755.90 km) |
| Rio Grande City to Raleigh (North Carolina) | 1,356.73 mi (2,183.44 km) |
| Rio Grande City to Ramona (California) | 1,175.17 mi (1,891.25 km) |
| Rio Grande City to Ramsey (Minnesota) | 1,338.01 mi (2,153.32 km) |
