The Monson Developmental Center is a historic site at 200 State Avenue in Monson, Massachusetts. The property, whose core has been in state control since 1854, has housed a variety of facilities for providing services to the indigent or sick since then.In 1854 the Commonwealth of Massachusetts acquired 175 acres (71 ha) of land in Monson, on which it erected an almshouse to provide facilities for poor immigrants fleeing the Irish Potato Famine.