Data / Rankings / Households / Counties in Iowa

Counties in Iowa by households, 2024

Polk County had the highest households of 99 counties in 2024, at 205,358. Adams County had the lowest, at 1,540. The median was 6,434 and the figure for Iowa was 1.32 million. Source: the U.S. Census Bureau.

Highest205,358Polk County
Lowest1,540Adams County
Median6,43499 counties
Iowa1,315,707History

Top 40 counties, 2024

Polk County: 205,358 countPolk County205,358Linn County: 95,600 countLinn County95,600Scott County: 73,132 countScott County73,132Johnson County: 63,341 countJohnson County63,341Black Hawk County: 54,563 countBlack Hawk County54,563Dallas County: 42,471 countDallas County42,471Dubuque County: 40,989 countDubuque County40,989Woodbury County: 40,699 countWoodbury County40,699Story County: 38,904 countStory County38,904Pottawattamie County: 37,642 countPottawattamie County37,642Warren County: 20,679 countWarren County20,679Cerro Gordo County: 19,538 countCerro Gordo County19,538Clinton County: 19,506 countClinton County19,506Muscatine County: 17,345 countMuscatine County17,345Des Moines County: 17,178 countDes Moines County17,178Marshall County: 15,496 countMarshall County15,496Webster County: 15,375 countWebster County15,375Jasper County: 15,010 countJasper County15,010Lee County: 14,323 countLee County14,323Wapello County: 13,997 countWapello County13,997Marion County: 13,316 countMarion County13,316Sioux County: 12,690 countSioux County12,690Boone County: 10,936 countBoone County10,936Plymouth County: 10,313 countPlymouth County10,313Benton County: 10,202 countBenton County10,202Bremer County: 9,716 countBremer County9,716Washington County: 8,972 countWashington County8,972Dickinson County: 8,845 countDickinson County8,845Carroll County: 8,801 countCarroll County8,801Mahaska County: 8,743 countMahaska County8,743Fayette County: 8,342 countFayette County8,342Buchanan County: 8,252 countBuchanan County8,252Jackson County: 8,242 countJackson County8,242Jones County: 8,198 countJones County8,198Winneshiek County: 8,139 countWinneshiek County8,139Poweshiek County: 7,804 countPoweshiek County7,804Henry County: 7,644 countHenry County7,644Cedar County: 7,622 countCedar County7,622Buena Vista County: 7,546 countBuena Vista County7,546Clayton County: 7,509 countClayton County7,509
count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.

Full ranking

RankCounties2024
count		Change on 2023
1Polk County205,358+1.5%
2Linn County95,600+0.6%
3Scott County73,132+0.6%
4Johnson County63,341+1.8%
5Black Hawk County54,563+1.5%
6Dallas County42,471+3.9%
7Dubuque County40,989+1%
8Woodbury County40,699+0.5%
9Story County38,904+0.5%
10Pottawattamie County37,642+0.3%
11Warren County20,679+2.3%
12Cerro Gordo County19,538+0.6%
13Clinton County19,506+0.4%
14Muscatine County17,345+1%
15Des Moines County17,178-0.1%
16Marshall County15,496-0.3%
17Webster County15,375-1.7%
18Jasper County15,010+1.8%
19Lee County14,323+0.1%
20Wapello County13,997-0.6%
21Marion County13,316-0.7%
22Sioux County12,690+0.9%
23Boone County10,9360%
24Plymouth County10,313+0.2%
25Benton County10,202+0.9%
26Bremer County9,716+0.2%
27Washington County8,972-0.8%
28Dickinson County8,845+2.3%
29Carroll County8,801+0.6%
30Mahaska County8,743-1.7%
31Fayette County8,342+1.7%
32Buchanan County8,252+1.3%
33Jackson County8,242-0.7%
34Jones County8,198+1.1%
35Winneshiek County8,139-0.7%
36Poweshiek County7,804+0.2%
37Henry County7,644+0.4%
38Cedar County7,622+1.1%
39Buena Vista County7,5460%
40Clayton County7,509+1.4%
41Delaware County7,369+2.7%
42Clay County7,282+0.5%
43Hardin County7,038+0.4%
44Jefferson County6,952+1.1%
45Iowa County6,909+0.9%
46Tama County6,720-0.2%
47Madison County6,696+1.1%
48Kossuth County6,543+0.6%
49Floyd County6,503-1.8%
50Hamilton County6,434+1.9%
51Crawford County6,331+1.6%
52Page County6,255+1.5%
53Harrison County6,089+1.4%
54Allamakee County5,950-1.2%
55Butler County5,863-0.4%
56Cass County5,844+1%
57O'Brien County5,809+0.3%
58Mills County5,394+0.8%
59Wright County5,3530%
60Appanoose County5,199+3.9%
61Grundy County5,117+0.6%
62Union County5,116+1.2%
63Cherokee County5,045-0.7%
64Chickasaw County4,997+0.2%
65Shelby County4,882-2%
66Hancock County4,673+1.3%
67Winnebago County4,641+1.1%
68Guthrie County4,600+0.3%
69Mitchell County4,597+2.7%
70Montgomery County4,585-0.5%
71Lyon County4,479+0.8%
72Sac County4,302+1.2%
73Louisa County4,237+2.3%
74Humboldt County4,219-0.4%
75Franklin County4,198+2.8%
76Clarke County4,071+1.7%
77Keokuk County4,068+0.1%
78Emmet County4,063+3.6%
79Calhoun County3,993+2.8%
80Greene County3,922-0.2%
81Monona County3,878-0.3%
82Palo Alto County3,782+1.2%
83Howard County3,773+2.8%
84Lucas County3,708+1%
85Adair County3,236-0.7%
86Davis County3,201+1%
87Worth County3,178-0.5%
88Monroe County3,089+3.3%
89Decatur County3,055+0.2%
90Ida County3,050+1.9%
91Pocahontas County3,000-2.7%
92Van Buren County2,896-0.1%
93Fremont County2,823+2.3%
94Osceola County2,634+1.1%
95Audubon County2,596+2.8%
96Wayne County2,565+0.4%
97Taylor County2,488+0.7%
98Ringgold County1,899+1.6%
99Adams County1,540+0.7%

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/2024/table-based-SF/data/5YRData/acsdt5y2024-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, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat

MLA 9

American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Iowa by households, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Invokely, https://invokely.ai/rankings/households/iowa-counties. 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, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Also distributed by Invokely, https://invokely.ai/rankings/households/iowa-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Iowa by households, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat, via Invokely: https://invokely.ai/rankings/households/iowa-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Iowa by households, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/households/iowa-counties. 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/2024/table-based-SF/data/5YRData/acsdt5y2024-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, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat
L2  - https://invokely.ai/rankings/households/iowa-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/households/iowa-counties.
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/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest households?

Polk County, with 205,358 in 2024, according to the U.S. Census Bureau.

Which county has the lowest households?

Adams County, with 1,540 in 2024.

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