Data / Rankings / Housing units authorized by building permits / Counties in Idaho

Counties in Idaho by housing units authorized by building permits, 2025

Ada County had the highest housing units authorized by building permits of 44 counties in 2025, at 5,221. Clark County had the lowest, at 2. The median was 113. Source: the U.S. Census Bureau.

Highest5,221Ada County
Lowest2Clark County
Median11344 counties

All counties, 2025

CSVChart (SVG)

Ada CountyAda County: 5,221 count5,221Canyon CountyCanyon County: 3,929 count3,929Kootenai CountyKootenai County: 1,705 count1,705Bonneville CountyBonneville County: 1,219 count1,219Madison CountyMadison County: 842 count842Bannock CountyBannock County: 592 count592Twin Falls CountyTwin Falls County: 527 count527Teton CountyTeton County: 384 count384Jefferson CountyJefferson County: 312 count312Nez Perce CountyNez Perce County: 272 count272Valley CountyValley County: 268 count268Latah CountyLatah County: 240 count240Bingham CountyBingham County: 207 count207Bonner CountyBonner County: 207 count207Payette CountyPayette County: 181 count181Elmore CountyElmore County: 164 count164Fremont CountyFremont County: 156 count156Minidoka CountyMinidoka County: 156 count156Gem CountyGem County: 144 count144Jerome CountyJerome County: 143 count143Bear Lake CountyBear Lake County: 128 count128Blaine CountyBlaine County: 113 count113Cassia CountyCassia County: 112 count112Boise CountyBoise County: 108 count108Washington CountyWashington County: 69 count69Franklin CountyFranklin County: 64 count64Benewah CountyBenewah County: 57 count57Shoshone CountyShoshone County: 51 count51Lemhi CountyLemhi County: 49 count49Lewis CountyLewis County: 41 count41Clearwater CountyClearwater County: 38 count38Gooding CountyGooding County: 36 count36Owyhee CountyOwyhee County: 36 count36Boundary CountyBoundary County: 32 count32Custer CountyCuster County: 32 count32Oneida CountyOneida County: 28 count28Caribou CountyCaribou County: 18 count18Lincoln CountyLincoln County: 16 count16Camas CountyCamas County: 14 count14Adams CountyAdams County: 11 count11Butte CountyButte County: 9 count9Idaho CountyIdaho County: 6 count6Power CountyPower County: 5 count5Clark CountyClark County: 2 count2
count. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-10.

Full ranking

RankCounties2025
count		Change on 2024
1Ada County Estimated5,221+1.6%
2Canyon County Estimated3,929+8.9%
3Kootenai County Estimated1,705+7.4%
4Bonneville County Estimated1,219-45.9%
5Madison County Estimated842+207.3%
6Bannock County Estimated592+83.3%
7Twin Falls County Estimated527-16.9%
8Teton County Estimated384+4.9%
9Jefferson County Estimated312+11%
10Nez Perce County Estimated272+117.6%
11Valley County Estimated268+15.5%
12Latah County Estimated240+21.2%
13Bingham County Estimated207-17.5%
13Bonner County Estimated207+40.8%
15Payette County Estimated181-21.6%
16Elmore County Estimated164+25.2%
17Fremont County Estimated156+10.6%
17Minidoka County Estimated156+9.9%
19Gem County Estimated144-27.3%
20Jerome County Estimated143+44.4%
21Bear Lake County Estimated128-1.5%
22Blaine County Estimated113-5%
23Cassia County Estimated112-17.6%
24Boise County Estimated108+31.7%
25Washington County Estimated69-58.4%
26Franklin County Estimated64-14.7%
27Benewah County Estimated57+3.6%
28Shoshone County Estimated51+10.9%
29Lemhi County Estimated49+8.9%
30Lewis County Estimated41+46.4%
31Clearwater County Estimated38-17.4%
32Gooding County Estimated36-30.8%
32Owyhee County Estimated36-2.7%
34Boundary County Estimated32-50%
34Custer County Estimated32-34.7%
36Oneida County Estimated28-30%
37Caribou County Estimated18-18.2%
38Lincoln County Estimated16+300%
39Camas County Estimated14-41.7%
40Adams County Estimated11-59.3%
41Butte County Estimated9-18.2%
42Idaho County Estimated6-40%
43Power County Estimated5+400%
44Clark County Estimated2+100%

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/co2025a.txt. Retrieved 2026-10-10.

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Questions

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

Ada County, with 5,221 in 2025, according to the U.S. Census Bureau.

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

Clark County, with 2 in 2025.

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 Idaho: more rankings