| | Adams County | OH | 39001 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=AdamsCounty+OH |
| | Belmont County | OH | 39013 | | Wheeling, WV-OH 48540 | | Central | metro county (urban) | mining-dependent | https://maps.google.com/?q=BelmontCounty+OH |
| | Defiance County | OH | 39039 | | Defiance, OH 19580 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=DefianceCounty+OH |
| | Fulton County | OH | 39051 | | Toledo, OH 45780 | | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=FultonCounty+Ohio |
| | Gallia County | OH | 39053 | | Gallipolis, OH 23680 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=GalliaCounty+Ohio |
| | Hardin County | OH | 39065 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HardinCounty+OH |
| | Harrison County | OH | 39067 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=HarrisonCounty+OH |
| | Henry County | OH | 39069 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=HenryCounty+OH |
| | Highland County | OH | 39071 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HighlandCounty+OH |
| | Holmes County | OH | 39075 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=HolmesCounty+OH |