| | Portage County | OH | 39133 | | Akron, OH 10420 | Cleveland-Akron-Canton,
OH 184 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=PortageCounty+OH |
| | Sandusky County | OH | 39143 | | Fremont, OH 23380 | Cleveland-Akron-Canton,
OH 184 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=SanduskyCounty+OH |
| | Stark County | OH | 39151 | | Canton-Massillon, OH 15940 | Cleveland-Akron-Canton,
OH 184 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=StarkCounty+OH |
| | Summit County | OH | 39153 | | Akron, OH 10420 | Cleveland-Akron-Canton,
OH 184 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SummitCounty+OH |
| | Tuscarawas County | OH | 39157 | | New Philadelphia-Dover,
OH 35420 | Cleveland-Akron-Canton,
OH 184 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=TuscarawasCounty+OH |
| | Wayne County | OH | 39169 | | Wooster, OH 49300 | Cleveland-Akron-Canton,
OH 184 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WayneCounty+OH |
| | Brown County | OH | 39015 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=BrownCounty+OH |
| | Butler County | OH | 39017 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ButlerCounty+OH |
| | Clermont County | OH | 39025 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ClermontCounty+OH |
| | Clinton County | OH | 39027 | | Wilmington, OH 48940 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ClintonCounty+OH |