County data explorer
Iowa county data and maps
Explore available county datasets, rankings and source notes.
Published topics
Rankings
Rankings describe published ACS estimates; follow each link for vintage and limitations.
Find a county
Links open county overviews where available and otherwise existing housing pages. The full alphabetical list works without JavaScript.
- Adair County GEOID 19001
- Adams County GEOID 19003
- Allamakee County GEOID 19005
- Appanoose County GEOID 19007
- Audubon County GEOID 19009
- Benton County GEOID 19011
- Black Hawk County GEOID 19013
- Boone County GEOID 19015
- Bremer County GEOID 19017
- Buchanan County GEOID 19019
- Buena Vista County GEOID 19021
- Butler County GEOID 19023
- Calhoun County GEOID 19025
- Carroll County GEOID 19027
- Cass County GEOID 19029
- Cedar County GEOID 19031
- Cerro Gordo County GEOID 19033
- Cherokee County GEOID 19035
- Chickasaw County GEOID 19037
- Clarke County GEOID 19039
- Clay County GEOID 19041
- Clayton County GEOID 19043
- Clinton County GEOID 19045
- Crawford County GEOID 19047
- Dallas County GEOID 19049
- Davis County GEOID 19051
- Decatur County GEOID 19053
- Delaware County GEOID 19055
- Des Moines County GEOID 19057
- Dickinson County GEOID 19059
- Dubuque County GEOID 19061
- Emmet County GEOID 19063
- Fayette County GEOID 19065
- Floyd County GEOID 19067
- Franklin County GEOID 19069
- Fremont County GEOID 19071
- Greene County GEOID 19073
- Grundy County GEOID 19075
- Guthrie County GEOID 19077
- Hamilton County GEOID 19079
- Hancock County GEOID 19081
- Hardin County GEOID 19083
- Harrison County GEOID 19085
- Henry County GEOID 19087
- Howard County GEOID 19089
- Humboldt County GEOID 19091
- Ida County GEOID 19093
- Iowa County GEOID 19095
- Jackson County GEOID 19097
- Jasper County GEOID 19099
- Jefferson County GEOID 19101
- Johnson County GEOID 19103
- Jones County GEOID 19105
- Keokuk County GEOID 19107
- Kossuth County GEOID 19109
- Lee County GEOID 19111
- Linn County GEOID 19113
- Louisa County GEOID 19115
- Lucas County GEOID 19117
- Lyon County GEOID 19119
- Madison County GEOID 19121
- Mahaska County GEOID 19123
- Marion County GEOID 19125
- Marshall County GEOID 19127
- Mills County GEOID 19129
- Mitchell County GEOID 19131
- Monona County GEOID 19133
- Monroe County GEOID 19135
- Montgomery County GEOID 19137
- Muscatine County GEOID 19139
- O'Brien County GEOID 19141
- Osceola County GEOID 19143
- Page County GEOID 19145
- Palo Alto County GEOID 19147
- Plymouth County GEOID 19149
- Pocahontas County GEOID 19151
- Polk County GEOID 19153
- Pottawattamie County GEOID 19155
- Poweshiek County GEOID 19157
- Ringgold County GEOID 19159
- Sac County GEOID 19161
- Scott County GEOID 19163
- Shelby County GEOID 19165
- Sioux County GEOID 19167
- Story County GEOID 19169
- Tama County GEOID 19171
- Taylor County GEOID 19173
- Union County GEOID 19175
- Van Buren County GEOID 19177
- Wapello County GEOID 19179
- Warren County GEOID 19181
- Washington County GEOID 19183
- Wayne County GEOID 19185
- Webster County GEOID 19187
- Winnebago County GEOID 19189
- Winneshiek County GEOID 19191
- Woodbury County GEOID 19193
- Worth County GEOID 19195
- Wright County GEOID 19197
Sources and limitations
Topic pages identify their sources, vintages, downloads and limitations. ACS estimates include survey uncertainty; crime counts are not population-normalized and do not establish safety or risk. PEP and ACS are distinct population series.