Data / Rankings / Households / Counties in Iowa

Counties in Iowa by households

Polk County had the highest households of 99 counties in 2022, at 199,013. Adams County had the lowest, at 1,523. The median was 6,214 and the figure for Iowa was 1.29 million. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest199,013Polk County
Lowest1,523Adams County
Median6,21499 counties
Iowa1,290,139History

Map of counties, 2022

Adair County: 3,224 countAdams County: 1,523 countAllamakee County: 5,970 countAppanoose County: 5,028 countAudubon County: 2,535 countBenton County: 10,114 countBlack Hawk County: 53,691 countBoone County: 10,893 countBremer County: 9,684 countBuchanan County: 8,020 countBuena Vista County: 7,538 countButler County: 5,839 countCalhoun County: 3,852 countCarroll County: 8,696 countCass County: 5,771 countCedar County: 7,508 countCerro Gordo County: 19,450 countCherokee County: 5,143 countChickasaw County: 4,920 countClarke County: 3,879 countClay County: 7,225 countClayton County: 7,286 countClinton County: 19,174 countCrawford County: 6,214 countDallas County: 39,386 countDavis County: 3,172 countDecatur County: 3,058 countDelaware County: 7,068 countDes Moines County: 17,251 countDickinson County: 8,279 countDubuque County: 39,985 countEmmet County: 3,881 countFayette County: 8,228 countFloyd County: 6,600 countFranklin County: 4,102 countFremont County: 2,736 countGreene County: 3,837 countGrundy County: 5,062 countGuthrie County: 4,518 countHamilton County: 6,203 countHancock County: 4,582 countHardin County: 7,029 countHarrison County: 5,963 countHenry County: 7,642 countHoward County: 3,636 countHumboldt County: 4,213 countIda County: 3,016 countIowa County: 6,798 countJackson County: 8,109 countJasper County: 14,630 countJefferson County: 6,826 countJohnson County: 61,414 countJones County: 8,062 countKeokuk County: 4,085 countKossuth County: 6,421 countLee County: 14,246 countLinn County: 94,291 countLouisa County: 4,112 countLucas County: 3,621 countLyon County: 4,412 countMadison County: 6,475 countMahaska County: 8,873 countMarion County: 13,310 countMarshall County: 15,288 countMills County: 5,261 countMitchell County: 4,505 countMonona County: 3,852 countMonroe County: 3,032 countMontgomery County: 4,493 countMuscatine County: 17,075 countO'Brien County: 5,700 countOsceola County: 2,631 countPage County: 6,137 countPalo Alto County: 3,635 countPlymouth County: 10,214 countPocahontas County: 3,083 countPolk County: 199,013 countPottawattamie County: 37,162 countPoweshiek County: 7,761 countRinggold County: 1,844 countSac County: 4,210 countScott County: 71,436 countShelby County: 4,933 countSioux County: 12,462 countStory County: 38,412 countTama County: 6,703 countTaylor County: 2,442 countUnion County: 4,979 countVan Buren County: 2,842 countWapello County: 14,193 countWarren County: 19,906 countWashington County: 8,922 countWayne County: 2,531 countWebster County: 15,582 countWinnebago County: 4,511 countWinneshiek County: 8,218 countWoodbury County: 40,299 countWorth County: 3,190 countWright County: 5,373 count
  • Under 4,000
  • 4,000 to 5,000
  • 5,000 to 6,000
  • 6,000 to 8,000
  • 8,000 to 15K
  • 15K and over
count, 2022. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2022

Polk County: 199,013 countPolk County199,013Linn County: 94,291 countLinn County94,291Scott County: 71,436 countScott County71,436Johnson County: 61,414 countJohnson County61,414Black Hawk County: 53,691 countBlack Hawk County53,691Woodbury County: 40,299 countWoodbury County40,299Dubuque County: 39,985 countDubuque County39,985Dallas County: 39,386 countDallas County39,386Story County: 38,412 countStory County38,412Pottawattamie County: 37,162 countPottawattamie County37,162Warren County: 19,906 countWarren County19,906Cerro Gordo County: 19,450 countCerro Gordo County19,450Clinton County: 19,174 countClinton County19,174Des Moines County: 17,251 countDes Moines County17,251Muscatine County: 17,075 countMuscatine County17,075Webster County: 15,582 countWebster County15,582Marshall County: 15,288 countMarshall County15,288Jasper County: 14,630 countJasper County14,630Lee County: 14,246 countLee County14,246Wapello County: 14,193 countWapello County14,193Marion County: 13,310 countMarion County13,310Sioux County: 12,462 countSioux County12,462Boone County: 10,893 countBoone County10,893Plymouth County: 10,214 countPlymouth County10,214Benton County: 10,114 countBenton County10,114Bremer County: 9,684 countBremer County9,684Washington County: 8,922 countWashington County8,922Mahaska County: 8,873 countMahaska County8,873Carroll County: 8,696 countCarroll County8,696Dickinson County: 8,279 countDickinson County8,279Fayette County: 8,228 countFayette County8,228Winneshiek County: 8,218 countWinneshiek County8,218Jackson County: 8,109 countJackson County8,109Jones County: 8,062 countJones County8,062Buchanan County: 8,020 countBuchanan County8,020Poweshiek County: 7,761 countPoweshiek County7,761Henry County: 7,642 countHenry County7,642Buena Vista County: 7,538 countBuena Vista County7,538Cedar County: 7,508 countCedar County7,508Clayton County: 7,286 countClayton County7,286Polk County: 199,013 countPolk County199,013Linn County: 94,291 countLinn County94,291Scott County: 71,436 countScott County71,436Johnson County: 61,414 countJohnson County61,414Black Hawk County: 53,691 countBlack Hawk County53,691Woodbury County: 40,299 countWoodbury County40,299Dubuque County: 39,985 countDubuque County39,985Dallas County: 39,386 countDallas County39,386Story County: 38,412 countStory County38,412Pottawattamie County: 37,162 countPottawattamie County37,162Warren County: 19,906 countWarren County19,906Cerro Gordo County: 19,450 countCerro Gordo County19,450Clinton County: 19,174 countClinton County19,174Des Moines County: 17,251 countDes Moines County17,251Muscatine County: 17,075 countMuscatine County17,075Webster County: 15,582 countWebster County15,582Marshall County: 15,288 countMarshall County15,288Jasper County: 14,630 countJasper County14,630Lee County: 14,246 countLee County14,246Wapello County: 14,193 countWapello County14,193Marion County: 13,310 countMarion County13,310Sioux County: 12,462 countSioux County12,462Boone County: 10,893 countBoone County10,893Plymouth County: 10,214 countPlymouth County10,214Benton County: 10,114 countBenton County10,114Bremer County: 9,684 countBremer County9,684Washington County: 8,922 countWashington County8,922Mahaska County: 8,873 countMahaska County8,873Carroll County: 8,696 countCarroll County8,696Dickinson County: 8,279 countDickinson County8,279Fayette County: 8,228 countFayette County8,228Winneshiek County: 8,218 countWinneshiek County8,218Jackson County: 8,109 countJackson County8,109Jones County: 8,062 countJones County8,062Buchanan County: 8,020 countBuchanan County8,020Poweshiek County: 7,761 countPoweshiek County7,761Henry County: 7,642 countHenry County7,642Buena Vista County: 7,538 countBuena Vista County7,538Cedar County: 7,508 countCedar County7,508Clayton County: 7,286 countClayton County7,286
count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.

Full ranking

RankCounties2022
count		Change on 2021
1Polk County199,013+1.9%
2Linn County94,291+0.7%
3Scott County71,436+2.1%
4Johnson County61,414+1.4%
5Black Hawk County53,691+0.4%
6Woodbury County40,299+1.2%
7Dubuque County39,985+1.1%
8Dallas County39,386+3.7%
9Story County38,412+1.2%
10Pottawattamie County37,162+0.5%
11Warren County19,906+2%
12Cerro Gordo County19,450-0.6%
13Clinton County19,174+0.4%
14Des Moines County17,251+1.2%
15Muscatine County17,075+1.7%
16Webster County15,582-0.5%
17Marshall County15,288-0.1%
18Jasper County14,630+1.8%
19Lee County14,246+1.3%
20Wapello County14,193+0.5%
21Marion County13,310+0.5%
22Sioux County12,462+1.4%
23Boone County10,893+1.6%
24Plymouth County10,214+0.2%
25Benton County10,114+0.4%
26Bremer County9,684+0.5%
27Washington County8,922+1%
28Mahaska County8,873+0.7%
29Carroll County8,696-0.7%
30Dickinson County8,279+2.3%
31Fayette County8,228+1.5%
32Winneshiek County8,218+0.8%
33Jackson County8,109+1.1%
34Jones County8,062+0.1%
35Buchanan County8,020+3%
36Poweshiek County7,761-0.8%
37Henry County7,642+1%
38Buena Vista County7,538+0.4%
39Cedar County7,508+1.7%
40Clayton County7,286-0.5%
41Clay County7,225+1.2%
42Delaware County7,068+1.8%
43Hardin County7,029-0.1%
44Jefferson County6,826+2.1%
45Iowa County6,798+0.5%
46Tama County6,703+0.7%
47Floyd County6,600-1.7%
48Madison County6,475+1.5%
49Kossuth County6,421-0%
50Crawford County6,214+0.9%
51Hamilton County6,203+3.5%
52Page County6,137-0.6%
53Allamakee County5,970+2.7%
54Harrison County5,963+0.5%
55Butler County5,839-0.4%
56Cass County5,771-0.1%
57O'Brien County5,700+0.5%
58Wright County5,373+0.6%
59Mills County5,261-0.8%
60Cherokee County5,143+0.3%
61Grundy County5,062+0.8%
62Appanoose County5,028+2.2%
63Union County4,979+0.9%
64Shelby County4,933+0.3%
65Chickasaw County4,920-1.7%
66Hancock County4,582-0.6%
67Guthrie County4,518+1.2%
68Winnebago County4,511+0.8%
69Mitchell County4,505+2.4%
70Montgomery County4,493+2.6%
71Lyon County4,412+1.1%
72Humboldt County4,213+0.6%
73Sac County4,210+0.3%
74Louisa County4,112+1.7%
75Franklin County4,102-0.1%
76Keokuk County4,085-1.2%
77Emmet County3,881+0.6%
78Clarke County3,879+3.7%
79Calhoun County3,852-2%
79Monona County3,852+1.7%
81Greene County3,837+1.2%
82Howard County3,636-1.9%
83Palo Alto County3,635-1.4%
84Lucas County3,621+0.2%
85Adair County3,224+1.4%
86Worth County3,190+0.8%
87Davis County3,172+0.7%
88Pocahontas County3,083-1.2%
89Decatur County3,058+0.2%
90Monroe County3,032+1.1%
91Ida County3,016+2.2%
92Van Buren County2,842-0.6%
93Fremont County2,736-0.2%
94Osceola County2,631-1.1%
95Audubon County2,535+1.5%
96Wayne County2,531-0.2%
97Taylor County2,442-0.2%
98Ringgold County1,844-0.9%
99Adams County1,523-0.4%

Other periods

About this ranking

Number of households, which equals the number of occupied housing units. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

People living in group quarters, such as college dormitories, nursing homes and prisons, are not in households.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B25003: occupied housing units (households) (Counties in Iowa by households, 2022) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat

MLA 9

American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Iowa by households, 2022. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat. Invokely, https://invokely.ai/rankings/households/iowa-counties?period=2022. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25003: occupied housing units (households). Counties in Iowa by households, 2022. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat. Also distributed by Invokely, https://invokely.ai/rankings/households/iowa-counties?period=2022.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Iowa by households, 2022 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat, via Invokely: https://invokely.ai/rankings/households/iowa-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2022,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Iowa by households, 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/households/iowa-counties?period=2022. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary\_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Iowa by households, 2022
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat
L2  - https://invokely.ai/rankings/households/iowa-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/households/iowa-counties?period=2022.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25003.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest households?

Polk County, with 199,013 in 2022, according to the U.S. Census Bureau.

Which county has the lowest households?

Adams County, with 1,523 in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.

Households: other rankings

Counties in Iowa: more rankings