Dauphin County Pennsylvania (Historic Districts) has 14 places on the National Register of Historic Places including 1 place of National significance and 4 places of Statewide significance. Significant places include Pennsylvania State Capitol Complex (Boundary Revision), Clemson Island Prehistoric District, Fort Hunter Historic District, Harrisburg Historic District and Harrisburg Military Post.
Prehistoric cultural affiliation(s) include Woodland and Archaic dating back to 6999 BC.
Some of the country's most noteable architects helped create the Dauphin County places including A. Boyd Hamilton. Prominent architectural styles found in Dauphin Country are Late Victorian, Late 19th And 20th Century Revivals and Federal.