Hingham (hĭngˈəm) [key], resort town (1990 pop. 19,821), Plymouth co., E Mass., S of Boston, on the south shore of Hingham Bay; inc. 1635. Hingham is primarily residential with some diverse light industry. Its bay shore draws annual visitors. The Old Ship Church (1681), a fine example of American Gothic architecture, is one of the oldest houses of worship in the United States and has been in continuous use since it was built.