| | Sioux County | IA | 19167 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=SiouxCounty+IA |
| | Tama County | IA | 19171 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=TamaCounty+IA |
| | Taylor County | IA | 19173 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=TaylorCounty+IA |
| | Union County | IA | 19175 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=UnionCounty+IA |
| | Van Buren County | IA | 19177 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=VanBurenCounty+IA |
| | Wapello County | IA | 19179 | | Ottumwa, IA 36900 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WapelloCounty+IA |
| | Wayne County | IA | 19185 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=WayneCounty+IA |
| | Webster County | IA | 19187 | | Fort Dodge, IA 22700 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=WebsterCounty+IA |
| | Winnebago County | IA | 19189 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=WinnebagoCounty+IA |
| | Winneshiek County | IA | 19191 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=WinneshiekCounty+IA |