Union County Louisiana has 11 places on the National Register of Historic Places including 3 places of Statewide significance. Significant places include Dual State Monument, Edgewood and Hopkins House, Alabama Methodist Church and Bernice Civic Clubhouse.
Some of the country's most noteable architects helped create the Union County places including George Elias, John Thomas, J.D. Baughman and Jacob T. Crews. Prominent architectural styles found in Union Country are Queen Anne, Stick/Eastlake and Art Deco.