Greenford is an unincorporated community in central Green Township, Mahoning County, Ohio, United States. Although it is unincorporated, it has a post office, with the ZIP code of 44422. It lies along State Route 165 a short distance north of Salem. South Range Middle School, the Greenford Public Library, and the Greenford Cupboard are on the main street. Also, the Greenford Christian Church and the Greenford Lutheran Church are in Greenford. The is part of the Youngstown-Warren-Boardman, OH-PA Metropolitan Statistical Area.