Blanco's famous Old Blanco County Courthouse, a Texas Historic Landmark, anchors the square at the heart of downtown Blanco.

The Old Courthouse survives as an outstanding example of Second Empire style architecture. According to the survey report for the National Register of Historic Places, "Overall the courthouse is one of the finest examples of courthouse architecture from the late 19th century in Texas."

The Courthouse also stands today as an outstanding example of small town spirit, determination, and accomplishment. Blanco County's prestigious former courthouse is subject to ongoing efforts to restore her to the historic elegance of former years and to establish a sustainable role for her in the life of the community.

The feeling and spirit of Blanco are embodied in the Old Courthouse. People who were born in the Courthouse during its hospital years have returned with their children and grandchildren. Newcomers to the area take to heart the significance of the Old Courthouse in Blanco's life. The building is recognized not only as an awe-inspiring landmark but an unequaled symbol of Texas history and American ingenuity.

The historic courtroom and landscaped grounds are now used for hosting wedding and events. From March through December, the Courthouse hosts the monthly Blanco Market Day.