| Rio Grande City to Abilene (Texas) | 423.24 mi (681.15 km) |
| Rio Grande City to Accokeek (Maryland) | 1,522.37 mi (2,450.02 km) |
| Rio Grande City to Acworth (Georgia) | 995.94 mi (1,602.80 km) |
| Rio Grande City to Ada (Oklahoma) | 593.32 mi (954.85 km) |
| Rio Grande City to Addison (Illinois) | 1,237.20 mi (1,991.08 km) |
| Rio Grande City to Addison (Texas) | 469.85 mi (756.16 km) |
| Rio Grande City to Adelanto (California) | 1,242.16 mi (1,999.07 km) |
| Rio Grande City to Adelphi (Maryland) | 1,534.68 mi (2,469.83 km) |
| Rio Grande City to Adrian (Michigan) | 1,360.91 mi (2,190.17 km) |
| Rio Grande City to Affton (Missouri) | 974.69 mi (1,568.61 km) |
| Rio Grande City to Agoura Hills (California) | 1,302.31 mi (2,095.87 km) |
| Rio Grande City to Aguadilla (Puerto Rico) | 2,089.83 mi (3,363.26 km) |
| Rio Grande City to Aiken (South Carolina) | 1,134.26 mi (1,825.42 km) |
| Rio Grande City to Akron (Ohio) | 1,415.83 mi (2,278.56 km) |
| Rio Grande City to Alabaster (Alabama) | 859.74 mi (1,383.62 km) |
