RANKING · 1990 CENSUS · 35 SHOWN OF 35

Youngest by median age, Idaho cities · 1990

Idaho cities with the youngest median age (2023 ACS). This list covers the 35 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, IDID40,33419.9−2%

02Ammon, IDID20,11924.2−16%

03Moscow, IDID26,72124.4+0%

04Shelley, IDID5,30326.1−3%

05Chubbuck, IDID16,82326.5−9%

06Kuna, IDID31,52527.1+4%

07Middleton, IDID12,60028.9+4%

08Rigby, IDID5,75729.0+2%

09Garden City, IDID13,04729.0−18%

10Meridian, IDID142,98829.8−1%

11Pocatello, IDID58,77129.8+3%

12Rupert, IDID6,46029.8−6%

13Burley, IDID12,40929.8−4%

14Rathdrum, IDID13,22729.8+4%

15Idaho Falls, IDID71,78530.1−7%

16Blackfoot, IDID13,36130.4−2%

17Nampa, IDID120,38430.4+7%

18Caldwell, IDID76,62930.7+7%

19Hailey, IDID10,05331.1−7%

20Post Falls, IDID46,71531.4+0%

21Preston, IDID6,17731.7+12%

22Kimberly, IDID5,79831.7−5%

23Hayden, IDID17,36332.1−9%

24Mountain Home, IDID16,77932.1+1%

25Boise City, IDID238,42932.3−2%

26Jerome, IDID13,73132.5+5%

27Twin Falls, IDID56,21632.7−3%

28Fruitland, IDID7,21332.9+5%

29Payette, IDID8,81333.1+2%

30Eagle, IDID34,65834.0−3%

31Emmett, IDID8,90034.2−1%

32Coeur d'Alene, IDID58,17934.4−1%

33Lewiston, IDID34,71735.2−7%

34Weiser, IDID6,24935.4−1%

35Sandpoint, IDID10,64536.3−1%

SHOWING 1–35 OF 35

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