RANKING · 2020 CENSUS · 36 SHOWN OF 36

Largest households, Idaho cities · 2020

Idaho cities ranked by average household size (2020 ACS). This list covers the 36 cities in Idaho that qualify, ranked against each other statewide.

IdahoAll statesPop > 5KAll rankings

SAME RANKING BYCounties 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 2010

01Kimberly, IDID5,7983.25+19%

02Caldwell, IDID76,6293.17+12%

03Rexburg, IDID40,3343.13−9%

04Kuna, IDID31,5253.07−6%

05Shelley, IDID5,3033.06−10%

06Middleton, IDID12,6003.00+0%

07Jerome, IDID13,7312.96+7%

08Hailey, IDID10,0532.95+27%

09Ammon, IDID20,1192.94−2%

10Rathdrum, IDID13,2272.92+17%

11Rupert, IDID6,4602.84+5%

12Star, IDID20,8742.84−15%

13Rigby, IDID5,7572.83+1%

14Meridian, IDID142,9882.82−1%

15Burley, IDID12,4092.80+5%

16Chubbuck, IDID16,8232.79−5%

17Preston, IDID6,1772.79−6%

18Post Falls, IDID46,7152.78+7%

19Nampa, IDID120,3842.78−4%

20Blackfoot, IDID13,3612.76+2%

21Eagle, IDID34,6582.65−5%

22Idaho Falls, IDID71,7852.60−1%

23Twin Falls, IDID56,2162.56−2%

24Fruitland, IDID7,2132.54−0%

25Pocatello, IDID58,7712.49−2%

26Emmett, IDID8,9002.46−2%

27Payette, IDID8,8132.44−9%

28Boise City, IDID238,4292.38+1%

29Hayden, IDID17,3632.37−2%

30Sandpoint, IDID10,6452.36+15%

31Lewiston, IDID34,7172.33+1%

32Mountain Home, IDID16,7792.31−13%

33Coeur d'Alene, IDID58,1792.27+1%

34Weiser, IDID6,2492.26−12%

35Moscow, IDID26,7212.21+3%

36Garden City, IDID13,0472.13−3%

SHOWING 1–36 OF 36

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS