| | 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 |
| | Richland County | OH | 39139 | | Mansfield, OH 31900 | Mansfield-Ashland-Bucyrus,
OH 360 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=RichlandCounty+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 |
| | Trumbull County | OH | 39155 | | Youngstown-Warren, OH 49660 | Youngstown-Warren-Salem,
OH 566 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=TrumbullCounty+OH |
| | Union County | OH | 39159 | | Columbus, OH 18140 | Columbus-Marion-Zanesville,
OH 198 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=UnionCounty+OH |
| | Warren County | OH | 39165 | | Cincinnati, OH-KY-IN 17140 | Cincinnati-Wilmington,
OH-KY-IN 178 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=WarrenCounty+OH |
| | Wood County | OH | 39173 | | Toledo, OH 45780 | | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=WoodCounty+Ohio |