Amherst is a town in Hillsborough County in the state of New Hampshire, United States. The population was 11,753 at the 2020 census. Amherst is home to Ponemah Bog Wildlife Sanctuary, Hodgman State Forest, the Joe English Reservation and Baboosic Lake. The village of Amherst, where 697 people lived at the 2020 census, is defined as the Amherst census-designated place and is listed on the National Register of Historic Places as Amherst Village Historic District.