Phillips County Arkansas (Vacant / Not In Use) has 6 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Battery D (Boundary Increase), Cherry Street Historic District Boundary Increase, Helena Depot, Phillips County Penal Farm Historic District and Richardson--Turner House.
Some of the country's most noteable architects helped create the Phillips County places including Works Progress Administration, L.R. Wright and Frank W. Gibb. Prominent architectural styles found in Phillips Country are Queen Anne, Bungalow/Craftsman and Early Commercial.