RANKING · 2000 CENSUS · 36 SHOWN OF 36

Youngest by median age, Idaho cities · 2000

Idaho cities with the youngest median age (2000 ACS). This list covers the 36 cities in Idaho that qualify, ranked against each other statewide. The median across all 36 is 31.3.

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SAME RANKING BYCounties States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 1990

01Rexburg, IDID40,33420.3+2%

02Moscow, IDID26,72124.40%

03Kuna, IDID31,52526.1−4%

04Shelley, IDID5,30327.0+3%

05Middleton, IDID12,60027.7−4%

06Preston, IDID6,17728.3−11%

07Star, IDID20,87428.4–

08Nampa, IDID120,38428.5−6%

09Rigby, IDID5,75728.5−2%

10Rathdrum, IDID13,22728.6−4%

11Ammon, IDID20,11928.8+19%

12Caldwell, IDID76,62928.8−6%

13Pocatello, IDID58,77128.8−3%

14Chubbuck, IDID16,82329.3+10%

15Meridian, IDID142,98830.1+1%

16Blackfoot, IDID13,36130.9+2%

17Burley, IDID12,40930.9+4%

18Jerome, IDID13,73131.0−5%

19Fruitland, IDID7,21331.3−5%

20Post Falls, IDID46,71531.30%

21Mountain Home, IDID16,77931.7−1%

22Rupert, IDID6,46031.7+6%

23Idaho Falls, IDID71,78532.3+7%

24Payette, IDID8,81332.4−2%

25Boise City, IDID238,42932.8+2%

26Hailey, IDID10,05333.3+7%

27Kimberly, IDID5,79833.5+6%

28Twin Falls, IDID56,21633.8+3%

29Emmett, IDID8,90034.6+1%

30Coeur d'Alene, IDID58,17934.8+1%

31Eagle, IDID34,65835.2+3%

32Hayden, IDID17,36335.3+10%

33Garden City, IDID13,04735.4+22%

34Weiser, IDID6,24935.9+1%

35Sandpoint, IDID10,64536.5+1%

36Lewiston, IDID34,71737.9+8%

SHOWING 1–36 OF 36

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