| | | Audubon County | IA | 19009 | | | | | not in metro; pop <
5k; non-metro-adjacent | farm-dependent | https://maps.google.com/?q=AudubonCounty+IA |
| | | Butler County | IA | 19023 | | | | | not in metro; pop <
5k; metro-adjacent | farm-dependent | https://maps.google.com/?q=ButlerCounty+IA |
| | | Calhoun County | IA | 19025 | | | | | not in metro; pop <
5k; non-metro-adjacent | farm-dependent | https://maps.google.com/?q=CalhounCounty+IA |
| | | Davis County | IA | 19051 | | | | | not in metro; pop <
5k; non-metro-adjacent | farm-dependent | https://maps.google.com/?q=DavisCounty+IA |
| | | Franklin County | IA | 19069 | | | | | not in metro; pop <
5k; non-metro-adjacent | farm-dependent | https://maps.google.com/?q=FranklinCounty+IA |
| | | Greene County | IA | 19073 | | | | | not in metro; pop <
5k; metro-adjacent | farm-dependent | https://maps.google.com/?q=GreeneCounty+IA |
| | | Grundy County | IA | 19075 | | Waterloo-Cedar Falls, IA 47940 | | Outlying | in metro of < 250k | farm-dependent | https://maps.google.com/?q=GrundyCounty+IA |
| | | 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 |
| | | Hamilton County | IA | 19079 | | | | | not in metro; pop > 5k
< 20k; metro-adjacent | farm-dependent | https://maps.google.com/?q=HamiltonCounty+IA |
| | | Hardin County | IA | 19083 | | | | | not in metro; pop > 5k
< 20k; metro-adjacent | farm-dependent | https://maps.google.com/?q=HardinCounty+IA |
