- AccuWeather Global - Rio Grande City, TX - Three day weather forecast, radar, satellite, current conditions, weather and news links.
- First Baptist Church of Rio Grande City, Texas - Includes calendar, worship schedule, contact information, and ministries.
- Handbook of Texas Online: Rio Grande City - Community history and information.
- J. D. Villarreal - A collection of web links for historical information on Starr County, Rio Grande City, Fort Ringgold and surrounding areas of South Texas.
- Ramirez Ford Sales Inc. - Dealer specializing in Ford cars and trucks. Includes information on warranties, location, hours or operation, financing, service, and parts.
- Rio Grande City Local News: Topix - Local, regional, and statewide news collected from diverse sources on the web.
- Rio Grande City Rattlers - Home of the Rattlers. Provides city history and Rio Grande City, Texas High School information.
- The Weather Channel - Rio Grande City, Texas - Local forecast, current conditions, radar, and links for national and international weather information.
