| | | Guthrie County | IA | 19077 | | Des Moines-West Des
Moines, IA 19780 | Des Moines-West Des
Moines-Ames, IA 218 | Outlying | in metro of > 250k
< 1m | farm-dependent | https://maps.google.com/?q=GuthrieCounty+IA |
| | | Harrison County | IA | 19085 | | Omaha, NE-IA 36540 | Omaha-Fremont, NE-IA 420 | Outlying | in metro of > 250k
< 1m | farm-dependent | https://maps.google.com/?q=HarrisonCounty+IA |
| | | Jasper County | IA | 19099 | | Des Moines-West Des
Moines, IA 19780 | Des Moines-West Des
Moines-Ames, IA 218 | Outlying | in metro of > 250k
< 1m | nonspecialized | https://maps.google.com/?q=JasperCounty+Iowa |
| | | Jones County | IA | 19105 | | Cedar Rapids, IA 16300 | Cedar Rapids-Iowa City,
IA 168 | Outlying | in metro of > 250k
< 1m | nonspecialized | https://maps.google.com/?q=JonesCounty+IA |
| | | Madison County | IA | 19121 | | Des Moines-West Des
Moines, IA 19780 | Des Moines-West Des
Moines-Ames, IA 218 | Outlying | in metro of > 250k
< 1m | nonspecialized | https://maps.google.com/?q=MadisonCounty+IA |
| | | Mills County | IA | 19129 | | Omaha, NE-IA 36540 | Omaha-Fremont, NE-IA 420 | Outlying | in metro of > 250k
< 1m | federal/state
government-dependent | https://maps.google.com/?q=MillsCounty+IA |
| | | Warren County | IA | 19181 | | Des Moines-West Des
Moines, IA 19780 | Des Moines-West Des
Moines-Ames, IA 218 | Outlying | in metro of > 250k
< 1m | nonspecialized | https://maps.google.com/?q=WarrenCounty+IA |
| | | Washington County | IA | 19183 | | Iowa City, IA 26980 | Cedar Rapids-Iowa City,
IA 168 | Outlying | in metro of < 250k | nonspecialized | https://maps.google.com/?q=WashingtonCounty+IA |
| | | Worth County | IA | 19195 | | Mason City, IA 32380 | | Outlying | not in metro; pop <
5k; non-metro-adjacent | farm-dependent | https://maps.google.com/?q=WorthCounty+IA |
