RANKING · 2020 CENSUS · 36 SHOWN OF 36

Youngest by median age, Idaho cities · 2020

Idaho cities with the youngest median age (2023 ACS). This list covers the 36 cities in Idaho that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros ZIP codes

RELATEDOldest by median age Most foreign-born residents Highest uninsured rate Most women Most men Highest disability rate

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Rexburg, IDID40,33422.8+12%

02Moscow, IDID26,72126.6+9%

03Rigby, IDID5,75728.5+0%

04Jerome, IDID13,73130.1−3%

05Shelley, IDID5,30330.6+13%

06Ammon, IDID20,11930.8+7%

07Kuna, IDID31,52530.9+18%

08Caldwell, IDID76,62931.0+8%

09Burley, IDID12,40931.6+2%

10Kimberly, IDID5,79832.0−4%

11Mountain Home, IDID16,77932.5+3%

12Rupert, IDID6,46032.7+3%

13Chubbuck, IDID16,82332.9+12%

14Nampa, IDID120,38433.1+16%

15Pocatello, IDID58,77133.4+16%

16Preston, IDID6,17733.4+18%

17Blackfoot, IDID13,36133.8+9%

18Idaho Falls, IDID71,78534.1+6%

19Middleton, IDID12,60034.2+23%

20Twin Falls, IDID56,21634.2+1%

21Meridian, IDID142,98835.7+19%

22Post Falls, IDID46,71535.8+14%

23Fruitland, IDID7,21335.8+14%

24Rathdrum, IDID13,22735.9+26%

25Boise City, IDID238,42937.1+13%

26Emmett, IDID8,90038.2+10%

27Payette, IDID8,81338.6+19%

28Coeur d'Alene, IDID58,17938.7+11%

29Hailey, IDID10,05338.8+17%

30Lewiston, IDID34,71739.9+5%

31Star, IDID20,87440.5+43%

32Sandpoint, IDID10,64542.3+16%

33Weiser, IDID6,24942.4+18%

34Hayden, IDID17,36343.2+22%

35Eagle, IDID34,65845.8+30%

36Garden City, IDID13,04747.0+33%

SHOWING 1–36 OF 36

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