Opperman, OhioOpperman is an unincorporated community and coal town in southwestern Guernsey [County, Ohio|Guernsey County], Ohio, United States. Its post office is closed.HistoryOpperman was planted by Thomas Moore and his wife on August 28, 1903. The town flourished while the mines were being operated. The village once had a railroad station, stores, schools and homes, but nearly all have disappeared.