| | Adams County | OH | 39001 | | | | Non-metropolitan | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=AdamsCounty+OH |
| | Athens County | OH | 39009 | | Athens, OH 11900 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=AthensCounty+OH |
| | Belmont County | OH | 39013 | | Wheeling, WV-OH 48540 | | Central | metro county (urban) | mining-dependent | https://maps.google.com/?q=BelmontCounty+OH |
| | Coshocton County | OH | 39031 | | Coshocton, OH 18740 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=CoshoctonCounty+OH |
| | Defiance County | OH | 39039 | | Defiance, OH 19580 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=DefianceCounty+OH |
| | Gallia County | OH | 39053 | | Point Pleasant, WV-OH 38580 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=GalliaCounty+OH |
| | Hardin County | OH | 39065 | | | | Non-metropolitan | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HardinCounty+OH |
| | Harrison County | OH | 39067 | | | | Non-metropolitan | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=HarrisonCounty+OH |
| | Henry County | OH | 39069 | | | | Non-metropolitan | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=HenryCounty+OH |
| | Highland County | OH | 39071 | | | | Non-metropolitan | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HighlandCounty+OH |