Grafton County New Hampshire (Historic Districts) has 18 places on the National Register of Historic Places including 2 places of National significance and 4 places of Statewide significance. Significant places include Enfield Shaker Historic District, Orford Street Historic District, Ashland Gristmill and Dam, Canaan Street Historic District and Central Square Historic District.
The famous person F.G. Webster is associated with one of more of the Grafton County historic places.
Some of the country's most noteable architects helped create the Grafton County places including Wales & Holt, Gordon MacDougall, C. Willis Damon and Ammi Burnham Young. Prominent architectural styles found in Grafton Country are Federal, Greek Revival and Late Victorian.