Poinsett County Arkansas (Vacant / Not In Use) has 4 places on the National Register of Historic Places including 1 place of National significance and 1 place of Statewide significance. Significant places include Marked Tree Lock and Siphons and Judd Hill Cotton Gin, Bacon Hotel, Hubbard Rice Dryer.
Some of the country's most noteable architects helped create the Poinsett County places including US Army Corps of Engineers and James Bacon. Prominent architectural styles found in Poinsett Country are .