RANKING · 2024 ACS · 44 SHOWN OF 44

Largest households, Idaho counties

Idaho counties ranked by average household size (2023 ACS). This list covers the 44 counties in Idaho that qualify, ranked against each other statewide.

IdahoAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2000

01Madison County, IDID55,1723.24–

02Jefferson County, IDID35,2973.23–

03Bingham County, IDID51,1533.05–

04Camas County, IDID1,3163.04–

05Franklin County, IDID15,8893.04–

06Jerome County, IDID26,3623.02–

07Cassia County, IDID26,3972.95–

08Clark County, IDID7832.93–

09Bonneville County, IDID135,7712.90–

10Bear Lake County, IDID6,7272.89–

11Fremont County, IDID14,2082.88–

12Canyon County, IDID275,1232.87–

13Lincoln County, IDID5,6032.87–

14Caribou County, IDID7,2522.86–

15Power County, IDID8,2462.86–

16Owyhee County, IDID12,6612.84–

17Valley County, IDID12,8312.82–

18Gooding County, IDID16,4462.77–

19Payette County, IDID27,8242.74–

20Minidoka County, IDID22,9112.73–

21Gem County, IDID21,7732.66–

22Twin Falls County, IDID97,5392.65–

23Teton County, IDID13,2542.65–

24Adams County, IDID5,0132.63–

25Washington County, IDID11,5832.61–

26Bannock County, IDID91,5912.58–

27Boundary County, IDID13,9972.58–

28Elmore County, IDID29,4652.54–

29Kootenai County, IDID191,8642.53–

30Ada County, IDID546,1412.49–

31Bonner County, IDID54,4202.49–

32Idaho County, IDID17,8742.48–

33Butte County, IDID2,7832.48–

34Benewah County, IDID10,5082.47–

35Oneida County, IDID5,0852.46–

36Nez Perce County, IDID42,9052.40–

37Blaine County, IDID25,5172.36–

38Shoshone County, IDID14,1302.35–

39Lemhi County, IDID8,4742.34–

40Boise County, IDID8,5452.29–

41Latah County, IDID41,8422.28–

42Lewis County, IDID3,7042.28–

43Clearwater County, IDID9,1182.27–

44Custer County, IDID4,6362.17–

SHOWING 1–44 OF 44

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES