Post is a city in and the county seat of Garza County, Texas, United States. The population was 3,708 at the 2000 census. There are many ranchers and civic boosters in Garza County, among them Giles McCrary, a former mayor who operates the OS Museum, a hybrid of exhibits from both the American West and Asia, which are changed three times per year. Post observed its centennial in 2007. Festivities began with a parade and were followed by The All-School Reunion Dance, which featured the band Thrift Store Cowboys from Post, Texas. Old Mill Trade Days offered six hours of live music as well as other activities. Throughout the weekend commemoration, there were art shows, museum exhibits, and theater productions to observe the centennial. In 1987, the Texas Historical Commission designated Post as a Texas Main Street City. Main Street is lined with gift and clothing stores located in restored historic buildings. Centennial Plaza on the courthouse lawn honors veterans and Post civic leaders.