Somervell County Texas has 4 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Barnard's Mill and Somervell County Courthouse.
Some of the country's most noteable architects helped create the Somervell County places including John Carmachiel and Charles E. Barnard. Prominent architectural styles found in Somervell Country are Bungalow/Craftsman and Romanesque.