| | | Ottawa County | OH | 39123 | | Sandusky, OH 41780 | Cleveland-Akron-Canton,
OH 184 | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=OttawaCounty+Ohio |
| | | Shelby County | OH | 39149 | | Sidney, OH 43380 | Dayton-Springfield-Kettering,
OH 212 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ShelbyCounty+OH |
| | | Clark County | OH | 39023 | | Springfield, OH 44220 | Dayton-Springfield-Kettering,
OH 212 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ClarkCounty+OH |
| | | Seneca County | OH | 39147 | | Tiffin, OH 45660 | Findlay-Tiffin, OH 248 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=SenecaCounty+OH |
| | | Fulton County | OH | 39051 | | Toledo, OH 45780 | | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=FultonCounty+Ohio |
| | | Lucas County | OH | 39095 | | Toledo, OH 45780 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LucasCounty+Ohio |
| | | Wood County | OH | 39173 | | Toledo, OH 45780 | | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=WoodCounty+Ohio |
| | | Champaign County | OH | 39021 | | Urbana, OH 46500 | Dayton-Springfield-Kettering,
OH 212 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=ChampaignCounty+OH |
| | | 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 |
| | | Auglaize County | OH | 39011 | | Wapakoneta, OH 47540 | Lima-Van Wert-Celina, OH 338 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=AuglaizeCounty+OH |
