The Rio Grande Valley Livestock Show 2024
Rio Grande Livestock Show Auditorium and Show Palace, 1000 North Texas, Mercedes, TX 78570
In 1939, the Rio Grande Valley Livestock Show and Agricultural Exposition, the foundation of today’s Show, was organized as a project of the Mercedes Chamber of Commerce. The first Show was held in 1940 on the grounds of a local livestock sales yard with improvised pens and lean-to sheds. The Show continued to be held on this same property until 1949 when it moved to its present location. In 1947, the Show was incorporated and chartered as a non-profit educational organization with a Board of Directors representing all of the four southmost counties of Texas.