Data / Rankings / Households with a broadband internet subscription / Counties in Iowa

Counties in Iowa by households with a broadband internet subscription

Sioux County had the highest households with a broadband internet subscription of 99 counties in 2021, at 90.8%. Davis County had the lowest, at 66.7%. The median was 82.2% and the figure for Iowa was 84.9%. Source: the U.S. Census Bureau.

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Highest90.8Sioux County
Lowest66.7Davis County
Median82.299 counties
Iowa84.9History

Map of counties, 2021

Adair County: 76.2 %Adams County: 82.9 %Allamakee County: 78.1 %Appanoose County: 77.7 %Audubon County: 80.3 %Benton County: 86.4 %Black Hawk County: 84.9 %Boone County: 83.9 %Bremer County: 87.8 %Buchanan County: 84.5 %Buena Vista County: 85.5 %Butler County: 81.3 %Calhoun County: 84.5 %Carroll County: 82.4 %Cass County: 80.9 %Cedar County: 82.9 %Cerro Gordo County: 84.1 %Cherokee County: 81.1 %Chickasaw County: 83.6 %Clarke County: 78.7 %Clay County: 85 %Clayton County: 79.4 %Clinton County: 82.5 %Crawford County: 82.5 %Dallas County: 90.3 %Davis County: 66.7 %Decatur County: 80 %Delaware County: 83.4 %Des Moines County: 81.4 %Dickinson County: 86.4 %Dubuque County: 87.4 %Emmet County: 81 %Fayette County: 80.5 %Floyd County: 81.7 %Franklin County: 79.1 %Fremont County: 80.6 %Greene County: 85.9 %Grundy County: 85.1 %Guthrie County: 83 %Hamilton County: 81.7 %Hancock County: 81.9 %Hardin County: 77 %Harrison County: 78.9 %Henry County: 80.7 %Howard County: 80.9 %Humboldt County: 79.8 %Ida County: 81.6 %Iowa County: 84 %Jackson County: 81.7 %Jasper County: 84.4 %Jefferson County: 84.3 %Johnson County: 89.7 %Jones County: 83.5 %Keokuk County: 79.7 %Kossuth County: 81.1 %Lee County: 83.6 %Linn County: 89.2 %Louisa County: 83 %Lucas County: 76.2 %Lyon County: 87.3 %Madison County: 85.2 %Mahaska County: 84.2 %Marion County: 83.7 %Marshall County: 81 %Mills County: 88.8 %Mitchell County: 85.1 %Monona County: 80.2 %Monroe County: 77.5 %Montgomery County: 81 %Muscatine County: 85.9 %O'Brien County: 85.9 %Osceola County: 85.6 %Page County: 81.5 %Palo Alto County: 80.8 %Plymouth County: 87.7 %Pocahontas County: 82.3 %Polk County: 88.2 %Pottawattamie County: 81.7 %Poweshiek County: 81.1 %Ringgold County: 80.5 %Sac County: 82.1 %Scott County: 86.8 %Shelby County: 80.4 %Sioux County: 90.8 %Story County: 77.1 %Tama County: 81.8 %Taylor County: 81 %Union County: 81.8 %Van Buren County: 70.4 %Wapello County: 79.3 %Warren County: 88.5 %Washington County: 85.6 %Wayne County: 74 %Webster County: 80.5 %Winnebago County: 83.2 %Winneshiek County: 82.6 %Woodbury County: 83 %Worth County: 82.2 %Wright County: 76.1 %
  • Under 80
  • 80 to 81
  • 81 to 82
  • 82 to 84
  • 84 to 86
  • 86 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Sioux County: 90.8 %Sioux County90.8Dallas County: 90.3 %Dallas County90.3Johnson County: 89.7 %Johnson County89.7Linn County: 89.2 %Linn County89.2Mills County: 88.8 %Mills County88.8Warren County: 88.5 %Warren County88.5Polk County: 88.2 %Polk County88.2Bremer County: 87.8 %Bremer County87.8Plymouth County: 87.7 %Plymouth County87.7Dubuque County: 87.4 %Dubuque County87.4Lyon County: 87.3 %Lyon County87.3Scott County: 86.8 %Scott County86.8Benton County: 86.4 %Benton County86.4Dickinson County: 86.4 %Dickinson County86.4O'Brien County: 85.9 %O'Brien County85.9Muscatine County: 85.9 %Muscatine County85.9Greene County: 85.9 %Greene County85.9Osceola County: 85.6 %Osceola County85.6Washington County: 85.6 %Washington County85.6Buena Vista County: 85.5 %Buena Vista County85.5Madison County: 85.2 %Madison County85.2Grundy County: 85.1 %Grundy County85.1Mitchell County: 85.1 %Mitchell County85.1Clay County: 85 %Clay County85Black Hawk County: 84.9 %Black Hawk County84.9Calhoun County: 84.5 %Calhoun County84.5Buchanan County: 84.5 %Buchanan County84.5Jasper County: 84.4 %Jasper County84.4Jefferson County: 84.3 %Jefferson County84.3Mahaska County: 84.2 %Mahaska County84.2Cerro Gordo County: 84.1 %Cerro Gordo County84.1Iowa County: 84 %Iowa County84Boone County: 83.9 %Boone County83.9Marion County: 83.7 %Marion County83.7Chickasaw County: 83.6 %Chickasaw County83.6Lee County: 83.6 %Lee County83.6Jones County: 83.5 %Jones County83.5Delaware County: 83.4 %Delaware County83.4Winnebago County: 83.2 %Winnebago County83.2Guthrie County: 83 %Guthrie County83Sioux County: 90.8 %Sioux County90.8Dallas County: 90.3 %Dallas County90.3Johnson County: 89.7 %Johnson County89.7Linn County: 89.2 %Linn County89.2Mills County: 88.8 %Mills County88.8Warren County: 88.5 %Warren County88.5Polk County: 88.2 %Polk County88.2Bremer County: 87.8 %Bremer County87.8Plymouth County: 87.7 %Plymouth County87.7Dubuque County: 87.4 %Dubuque County87.4Lyon County: 87.3 %Lyon County87.3Scott County: 86.8 %Scott County86.8Benton County: 86.4 %Benton County86.4Dickinson County: 86.4 %Dickinson County86.4O'Brien County: 85.9 %O'Brien County85.9Muscatine County: 85.9 %Muscatine County85.9Greene County: 85.9 %Greene County85.9Osceola County: 85.6 %Osceola County85.6Washington County: 85.6 %Washington County85.6Buena Vista County: 85.5 %Buena Vista County85.5Madison County: 85.2 %Madison County85.2Grundy County: 85.1 %Grundy County85.1Mitchell County: 85.1 %Mitchell County85.1Clay County: 85 %Clay County85Black Hawk County: 84.9 %Black Hawk County84.9Calhoun County: 84.5 %Calhoun County84.5Buchanan County: 84.5 %Buchanan County84.5Jasper County: 84.4 %Jasper County84.4Jefferson County: 84.3 %Jefferson County84.3Mahaska County: 84.2 %Mahaska County84.2Cerro Gordo County: 84.1 %Cerro Gordo County84.1Iowa County: 84 %Iowa County84Boone County: 83.9 %Boone County83.9Marion County: 83.7 %Marion County83.7Chickasaw County: 83.6 %Chickasaw County83.6Lee County: 83.6 %Lee County83.6Jones County: 83.5 %Jones County83.5Delaware County: 83.4 %Delaware County83.4Winnebago County: 83.2 %Winnebago County83.2Guthrie County: 83 %Guthrie County83
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-18.

Full ranking

RankCounties2021 (%)
1Sioux County90.8
2Dallas County90.3
3Johnson County89.7
4Linn County89.2
5Mills County88.8
6Warren County88.5
7Polk County88.2
8Bremer County87.8
9Plymouth County87.7
10Dubuque County87.4
11Lyon County87.3
12Scott County86.8
13Benton County86.4
14Dickinson County86.4
15O'Brien County85.9
16Muscatine County85.9
17Greene County85.9
18Osceola County85.6
19Washington County85.6
20Buena Vista County85.5
21Madison County85.2
22Grundy County85.1
23Mitchell County85.1
24Clay County85
25Black Hawk County84.9
26Calhoun County84.5
27Buchanan County84.5
28Jasper County84.4
29Jefferson County84.3
30Mahaska County84.2
31Cerro Gordo County84.1
32Iowa County84
33Boone County83.9
34Marion County83.7
35Chickasaw County83.6
36Lee County83.6
37Jones County83.5
38Delaware County83.4
39Winnebago County83.2
40Guthrie County83
41Louisa County83
42Woodbury County83
43Adams County82.9
44Cedar County82.9
45Winneshiek County82.6
46Clinton County82.5
47Crawford County82.5
48Carroll County82.4
49Pocahontas County82.3
50Worth County82.2
51Sac County82.1
52Hancock County81.9
53Tama County81.8
54Union County81.8
55Jackson County81.7
55Pottawattamie County81.7
57Floyd County81.7
58Hamilton County81.7
59Ida County81.6
60Page County81.5
61Des Moines County81.4
62Butler County81.3
63Kossuth County81.1
64Poweshiek County81.1
65Cherokee County81.1
66Montgomery County81
67Marshall County81
68Emmet County81
69Taylor County81
70Howard County80.9
71Cass County80.9
72Palo Alto County80.8
73Henry County80.7
74Fremont County80.6
75Ringgold County80.5
76Fayette County80.5
76Webster County80.5
78Shelby County80.4
79Audubon County80.3
80Monona County80.2
81Decatur County80
82Humboldt County79.8
83Keokuk County79.7
84Clayton County79.4
85Wapello County79.3
86Franklin County79.1
87Harrison County78.9
88Clarke County78.7
89Allamakee County78.1
90Appanoose County77.7
91Monroe County77.5
92Story County77.1
93Hardin County77
94Adair County76.2
95Lucas County76.2
96Wright County76.1
97Wayne County74
98Van Buren County70.4
99Davis County66.7

Other periods

About this ranking

Households with a broadband internet subscription of any type (cellular data plan, cable, fiber optic, DSL, satellite or other non-dial-up service), as a percentage of all households. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Counts a paid subscription, so households that only use free access (a library or public wifi) are not included. A cellular data plan alone counts as broadband. A separate series from households_internet_access_share, the Eurostat share of households with internet access at home.

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 B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Retrieved 2026-10-18.

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 B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs (Counties in Iowa by households with a broadband internet subscription, 2021) [Data set]. Retrieved October 18, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat

MLA 9

American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs, Counties in Iowa by households with a broadband internet subscription, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Invokely, https://invokely.ai/rankings/households-broadband-subscription/iowa-counties?period=2021. Accessed 18 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. Counties in Iowa by households with a broadband internet subscription, 2021. Dataset. Accessed October 18, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Also distributed by Invokely, https://invokely.ai/rankings/households-broadband-subscription/iowa-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs, Counties in Iowa by households with a broadband internet subscription, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat, via Invokely: https://invokely.ai/rankings/households-broadband-subscription/iowa-counties?period=2021 (Accessed: 18 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs: Counties in Iowa by households with a broadband internet subscription, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat},
  urldate = {2026-10-18},
  note = {Accessed via Invokely, https://invokely.ai/rankings/households-broadband-subscription/iowa-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Retrieved 2026-10-18.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs: Counties in Iowa by households with a broadband internet subscription, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat
L2  - https://invokely.ai/rankings/households-broadband-subscription/iowa-counties?period=2021
Y2  - 2026/10/18
N1  - Accessed via Invokely, https://invokely.ai/rankings/households-broadband-subscription/iowa-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Retrieved 2026-10-18.
ER  -
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Questions

Which county has the highest households with a broadband internet subscription?

Sioux County, with 90.8% in 2021, according to the U.S. Census Bureau.

Which county has the lowest households with a broadband internet subscription?

Davis County, with 66.7% in 2021.

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 B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. Retrieved 2026-10-18.

Households with a broadband internet subscription: other rankings

Counties in Iowa: more rankings