| | | Allegan County | MI | 26005 | | Holland, MI 26090 | Grand Rapids-Wyoming, MI 266 | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=AlleganCounty+MI |
| | | Barry County | MI | 26015 | | Grand
Rapids-Wyoming-Kentwood,
MI 24340 | Grand Rapids-Wyoming, MI 266 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=BarryCounty+MI |
| | | Ionia County | MI | 26067 | | Grand
Rapids-Wyoming-Kentwood,
MI 24340 | Grand Rapids-Wyoming, MI 266 | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=IoniaCounty+Michigan |
| | | Kent County | MI | 26081 | | Grand
Rapids-Wyoming-Kentwood,
MI 24340 | Grand Rapids-Wyoming, MI 266 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=KentCounty+MI |
| | | Mecosta County | MI | 26107 | | Big Rapids, MI 13660 | Grand Rapids-Wyoming, MI 266 | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=MecostaCounty+MI |
| | | Montcalm County | MI | 26117 | | Grand
Rapids-Wyoming-Kentwood,
MI 24340 | Grand Rapids-Wyoming, MI 266 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=MontcalmCounty+MI |
| | | Muskegon County | MI | 26121 | | Muskegon-Norton Shores,
MI 34740 | Grand Rapids-Wyoming, MI 266 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=MuskegonCounty+MI |
| | | Ottawa County | MI | 26139 | | Grand
Rapids-Wyoming-Kentwood,
MI 24340 | Grand Rapids-Wyoming, MI 266 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=OttawaCounty+MI |
