. "Kinsman is an unincorporated community in southern Kinsman Township, Trumbull County, Ohio, United States. Although it is unincorporated, it has a post office, with the ZIP code of 44428; as well as a library, the Kinsman Free Public Library. It lies along State Route 7 between Andover and Hubbard.Kinsman was named for an early landowner.The community is part of the Youngstown\u2013Warren\u2013Boardman, OH-PA Metropolitan Statistical Area."@en . .