| | Van Wert County | OH | 39161 | | Van Wert, OH 46780 | Lima-Van Wert-Celina, OH 338 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=VanWertCounty+OH |
| | Vinton County | OH | 39163 | | | | Non-metropolitan | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=VintonCounty+OH |
| | Warren County | OH | 39165 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington-Maysville,
OH-KY-IN 178 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=WarrenCounty+OH |
| | Washington County | OH | 39167 | | Marietta, OH 31930 | Parkersburg-Marietta-Vienna,
WV-OH 425 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=WashingtonCounty+OH |
| | Wayne County | OH | 39169 | | Wooster, OH 49300 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WayneCounty+OH |
| | Williams County | OH | 39171 | | | | Non-metropolitan | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WilliamsCounty+OH |
| | Wood County | OH | 39173 | | Toledo, OH 45780 | Toledo-Port Clinton, OH 534 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=WoodCounty+OH |
| | Wyandot County | OH | 39175 | | | | Non-metropolitan | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WyandotCounty+OH |