| | Grundy County | IA | 19075 | | Waterloo-Cedar Falls, IA 47940 | | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=GrundyCounty+IA |
| | Hamilton County | IA | 19079 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=HamiltonCounty+IA |
| | Hancock County | IA | 19081 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=HancockCounty+IA |
| | Hardin County | IA | 19083 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=HardinCounty+IA |
| | Henry County | IA | 19087 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=HenryCounty+IA |
| | Howard County | IA | 19089 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=HowardCounty+IA |
| | Humboldt County | IA | 19091 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=HumboldtCounty+IA |
| | Ida County | IA | 19093 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=IdaCounty+IA |
| | Iowa County | IA | 19095 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=IowaCounty+IA |
| | Jackson County | IA | 19097 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=JacksonCounty+IA |