The Hopkinton Green, Town Hall (1870), and Congregational Church (1892) are listed jointly on the U.S. National Register of Historic Places. Town founder Roswell Hopkins originally deeded this area to local citizens in 1808 for the inhabitants of the town to use as a public green or common and for no other purpose. The Hopkinton Green Historic District was recognized in 2014 by the Keeper of the National Register in Washington, D.C., for cultural and architectural significance worthy of protection and preservation. The park and buildings reflect a distinct New England land-use pattern typical of settlers who migrated westward. By the early 1800s, such dedicated space had evolved from a shared pasture for animals into a permanent focal point for a variety of community functions. In the 1980s, the people of Hopkinton expanded the district's resources by converting an adjacent 1838 house into a museum and library. During the town bicentennial celebration in 2002, a gazebo was placed in the park to memorialize military service veterans. In 2017, the town constructed a municipal office building and parking area just west of the green.