| | Huron County | OH | 39077 | | Norwalk, OH 35940 | Cleveland-Akron-Canton,
OH 184 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=HuronCounty+OH |
| | Jefferson County | OH | 39081 | | Weirton-Steubenville,
WV-OH 48260 | Pittsburgh-Weirton-Steubenville,
PA-OH-WV 430 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=JeffersonCounty+OH |
| | Knox County | OH | 39083 | | Mount Vernon, OH 34540 | Columbus-Marion-Zanesville,
OH 198 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=KnoxCounty+OH |
| | Lake County | OH | 39085 | | Cleveland, OH 17410 | Cleveland-Akron-Canton,
OH 184 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=LakeCounty+OH |
| | Lawrence County | OH | 39087 | | Huntington-Ashland,
WV-KY-OH 26580 | Charleston-Huntington-Ashland,
WV-OH-KY 170 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LawrenceCounty+OH |
| | Logan County | OH | 39091 | | Bellefontaine, OH 13340 | Columbus-Marion-Zanesville,
OH 198 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=LoganCounty+OH |
| | Lucas County | OH | 39095 | | Toledo, OH 45780 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LucasCounty+Ohio |
| | Mahoning County | OH | 39099 | | Youngstown-Warren, OH 49660 | Youngstown-Warren-Salem,
OH 566 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=MahoningCounty+OH |
| | Marion County | OH | 39101 | | Marion, OH 32020 | Columbus-Marion-Zanesville,
OH 198 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=MarionCounty+OH |
| | Medina County | OH | 39103 | | Cleveland, OH 17410 | Cleveland-Akron-Canton,
OH 184 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=MedinaCounty+OH |