Counties in Iowa by housing units authorized by building permits

Polk County had the highest housing units authorized by building permits of 99 counties in 2023, at 3,095. Lucas County had the lowest, at 0. The median was 20. Source: the U.S. Census Bureau.

Highest3,095Polk County
Median2099 counties

Top 40 counties, 2023

CSVChart (SVG)

Polk CountyPolk County: 3,095 count3,095Dallas CountyDallas County: 1,421 count1,421Johnson CountyJohnson County: 1,236 count1,236Linn CountyLinn County: 694 count694Scott CountyScott County: 488 count488Black Hawk CountyBlack Hawk County: 420 count420Warren CountyWarren County: 363 count363Dickinson CountyDickinson County: 354 count354Dubuque CountyDubuque County: 195 count195Pottawattamie CountyPottawattamie County: 179 count179Story CountyStory County: 165 count165Woodbury CountyWoodbury County: 163 count163Sioux CountySioux County: 134 count134Clarke CountyClarke County: 129 count129Marion CountyMarion County: 119 count119Cedar CountyCedar County: 107 count107Boone CountyBoone County: 97 count97Marshall CountyMarshall County: 94 count94Clinton CountyClinton County: 85 count85Madison CountyMadison County: 82 count82Poweshiek CountyPoweshiek County: 77 count77O'Brien CountyO'Brien County: 66 count66Buchanan CountyBuchanan County: 58 count58Webster CountyWebster County: 54 count54Des Moines CountyDes Moines County: 51 count51Allamakee CountyAllamakee County: 49 count49Winneshiek CountyWinneshiek County: 48 count48Carroll CountyCarroll County: 47 count47Wapello CountyWapello County: 46 count46Cerro Gordo CountyCerro Gordo County: 44 count44Mitchell CountyMitchell County: 44 count44Plymouth CountyPlymouth County: 43 count43Henry CountyHenry County: 41 count41Bremer CountyBremer County: 40 count40Benton CountyBenton County: 39 count39Hamilton CountyHamilton County: 36 count36Jones CountyJones County: 35 count35Delaware CountyDelaware County: 30 count30Washington CountyWashington County: 30 count30Mills CountyMills County: 29 count29
count. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-10.

Full ranking

RankCounties2023
count
1Polk County Estimated3,095
2Dallas County Estimated1,421
3Johnson County Estimated1,236
4Linn County Estimated694
5Scott County Estimated488
6Black Hawk County Estimated420
7Warren County Estimated363
8Dickinson County Estimated354
9Dubuque County Estimated195
10Pottawattamie County Estimated179
11Story County Estimated165
12Woodbury County Estimated163
13Sioux County Estimated134
14Clarke County Estimated129
15Marion County Estimated119
16Cedar County Estimated107
17Boone County Estimated97
18Marshall County Estimated94
19Clinton County Estimated85
20Madison County Estimated82
21Poweshiek County Estimated77
22O'Brien County Estimated66
23Buchanan County Estimated58
24Webster County Estimated54
25Des Moines County Estimated51
26Allamakee County Estimated49
27Winneshiek County Estimated48
28Carroll County Estimated47
29Wapello County Estimated46
30Cerro Gordo County Estimated44
30Mitchell County Estimated44
32Plymouth County Estimated43
33Henry County Estimated41
34Bremer County Estimated40
35Benton County Estimated39
36Hamilton County Estimated36
37Jones County Estimated35
38Delaware County Estimated30
38Washington County Estimated30
40Mills County Estimated29
40Wright County Estimated29
42Clayton County Estimated28
43Butler County Estimated26
44Harrison County Estimated25
44Lyon County Estimated25
46Calhoun County Estimated24
46Muscatine County Estimated24
48Grundy County Estimated21
48Page County Estimated21
50Buena Vista County Estimated20
50Guthrie County Estimated20
50Jackson County Estimated20
53Floyd County Estimated19
53Jasper County Estimated19
55Lee County Estimated18
56Palo Alto County Estimated17
57Cass County Estimated16
57Crawford County Estimated16
57Hancock County Estimated16
57Humboldt County Estimated16
57Louisa County Estimated16
62Greene County Estimated15
63Clay County Estimated14
63Kossuth County Estimated14
63Monona County Estimated14
63Monroe County Estimated14
67Fremont County Estimated13
68Fayette County Estimated12
68Iowa County Estimated12
68Tama County Estimated12
71Mahaska County Estimated10
72Adair County Estimated9
72Emmet County Estimated9
72Jefferson County Estimated9
72Montgomery County Estimated9
76Cherokee County Estimated8
76Wayne County Estimated8
78Appanoose County Estimated7
78Osceola County Estimated7
78Sac County Estimated7
78Taylor County Estimated7
82Audubon County Estimated6
82Howard County Estimated6
82Shelby County Estimated6
85Adams County Estimated5
85Hardin County Estimated5
85Union County Estimated5
88Ringgold County Estimated4
89Chickasaw County Estimated3
89Franklin County Estimated3
89Winnebago County Estimated3
92Davis County Estimated2
92Ida County Estimated2
92Pocahontas County Estimated2
92Van Buren County Estimated2
96Decatur County Estimated1
96Keokuk County Estimated1
96Worth County Estimated1
99Lucas County Estimated0

Other periods

About this ranking

Annual number of new privately owned housing units authorized by building permits, from the US Census Bureau Building Permits Survey.

Final annual county estimates include imputation for missing reports. Counts housing units, not buildings, starts, completions or sales. Covers permit-issuing areas; areas where permits are not required are outside the survey. Not seasonally adjusted or expressed as an annualized monthly rate. The total is the sum of units in the four published structure categories; inputs are retained.

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. Building Permits Survey: final annual county estimates of new privately owned housing units authorized, including imputation. https://www2.census.gov/econ/bps/County/co2023a.txt. Retrieved 2026-10-10.

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Questions

Which county has the highest housing units authorized by building permits?

Polk County, with 3,095 in 2023, according to the U.S. Census Bureau.

Which county has the lowest housing units authorized by building permits?

Lucas County, with 0 in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Building Permits Survey: final annual county estimates of new privately owned housing units authorized, including imputation. Retrieved 2026-10-10.

Housing units authorized by building permits: other rankings

Counties in Iowa: more rankings