Rockingham County New Hampshire (Historic Districts) has 24 places on the National Register of Historic Places including 4 places of National significance and 9 places of Statewide significance. Significant places include Isles of Shoals, Portsmouth Downtown Historic District, Strawberry Banke Historic District, Wentworth--Gardner and Tobias Lear Houses and Atlantic Heights Development.
Some of the country's most noteable architects helped create the Rockingham County places including Kilham & Hopkins, Rutan & Coolidge Shepley, Chase R. Whitcher and Foster and Robinson. Prominent architectural styles found in Rockingham Country are Federal, Greek Revival and Colonial Revival.