RANKING · 2010 CENSUS · 36 SHOWN OF 36

Youngest by median age, Idaho cities · 2010

Idaho cities with the youngest median age (2010 ACS). This list covers the 36 cities in Idaho that qualify, ranked against each other statewide. The median across all 36 is 32.2.

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SAME RANKING BYCounties States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Rexburg, IDID40,33422.3+10%

02Moscow, IDID26,72124.2−1%

03Rigby, IDID5,75727.6−3%

04Shelley, IDID5,30327.8+3%

05Kuna, IDID31,52528.1+8%

06Caldwell, IDID76,62928.2−2%

07Jerome, IDID13,73128.9−7%

08Ammon, IDID20,11929.6+3%

09Mountain Home, IDID16,77929.8−6%

10Nampa, IDID120,38430.1+6%

11Chubbuck, IDID16,82330.2+3%

12Pocatello, IDID58,77130.2+5%

13Middleton, IDID12,60030.5+10%

14Blackfoot, IDID13,36130.80%

15Burley, IDID12,40930.80%

16Preston, IDID6,17731.7+12%

17Kimberly, IDID5,79831.9−5%

18Twin Falls, IDID56,21631.9−6%

19Idaho Falls, IDID71,78532.20%

20Rathdrum, IDID13,22732.3+13%

21Star, IDID20,87432.3+14%

22Meridian, IDID142,98832.5+8%

23Fruitland, IDID7,21332.7+4%

24Post Falls, IDID46,71533.0+5%

25Rupert, IDID6,46033.3+5%

26Payette, IDID8,81335.0+8%

27Hailey, IDID10,05335.1+5%

28Boise City, IDID238,42935.3+8%

29Coeur d'Alene, IDID58,17935.4+2%

30Emmett, IDID8,90036.3+5%

31Weiser, IDID6,24938.7+8%

32Sandpoint, IDID10,64538.8+6%

33Hayden, IDID17,36339.4+12%

34Lewiston, IDID34,71739.9+5%

35Eagle, IDID34,65840.6+15%

36Garden City, IDID13,04743.2+22%

SHOWING 1–36 OF 36

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS