San Marcos began as a project of St. Marks UMC, meeting in their scout hut. In 1989 they were chartered as the first Hispanic church in the Texas Conference and in 1991 they moved out on their own to their present location.

San Marcos is a full-service church offering a wide array of United Methodist worship and educational opportunities with emphasis on evangelism. The congregation is organized in active ministries such as the children, youth, women, just to name a few.