Harrison County Mississippi (Historic Districts) has 9 places on the National Register of Historic Places including 1 place of National significance. Significant places include Scenic Drive Historic District, Biloxi Downtown Historic District, Biloxi Veterans Administration Medical Center, Harbor Square Historic District and Turkey Creek Community Historic District.
Some of the country's most noteable architects helped create the Harrison County places including Veterans Administration and Tom White. Prominent architectural styles found in Harrison Country are Classical Revival, Colonial Revival and Bungalow/Craftsman.