- ChefMoz: Rio Grande City - Detailed restaurant listings and dining guide with reviews submitted by the public, and links to outside reviews. Search by name, cuisine, rating, or location.
- CNN.com - Weather - Rio Grande City, TX - 5 day weather forecast for Rio Grande City, TX.
- 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.
