Weimar is a city in Colorado County, Texas, United States. The population was 2,151 at the 2010 census.In 1873 the town was founded in anticipation that the Galveston, Harrisburg, & San Antonio Railroad was going to build through the site. It was originally named "Jackson" after D.W. Jackson, a native Georgian and landowner, but subsequently was called "Weimar" in tribute to the German city of Weimar.Located on Interstate 10 and US 90 between San Antonio, Austin, and Houston, Weimar is a small community of predominantly Czech and German descendants.A strong history of baseball exists in Weimar. Veterans Park was ahead of its time when it was built in 1948, and was the first lighted baseball field between San Antonio and Houston. Veterans Park remains a state-of-the-art baseball stadium, having hosted a Babe Ruth League World Series Tournament in 2005.Weimar is where Norman J. Sirnic and Karen Sirnic were murdered by serial killer Angel Maturino Resendiz on May 2, 1999.