Jefferson County Arkansas (Historic Districts) has 6 places on the National Register of Historic Places including 2 places of National significance. Significant places include Lake Dick and Plum Bayou Homesteads, Pine Bluff Commercial Historic District, Pine Bluff Fifth Avenue Historic District.
Some of the country's most noteable architects helped create the Jefferson County places including Charles Thompson. Prominent architectural styles found in Jefferson Country are Bungalow/Craftsman, Early Commercial and Late Victorian.