Iberville County Louisiana (Historic Districts) has 3 places on the National Register of Historic Places including 1 place of National significance and 1 place of Statewide significance. Significant places include Carville Historic District and Carville Historic District, Plaquemine Historic District, Plaquemine Historic District (Boundary Increase).
Some of the country's most noteable architects helped create the Iberville County places including Neill P. Thompson and Henry Howard. Prominent architectural styles found in Iberville Country are Classical Revival, Colonial Revival and Greek Revival.