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.

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IdahoAll statesPop > 5KAll rankings

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 1990

01Rexburg, IDID40,33420.3+2%

02Moscow, IDID26,72124.4−0%

03Kuna, IDID31,52526.1−4%

04Shelley, IDID5,30327.0+3%

05Middleton, IDID12,60027.7−4%

06Preston, IDID6,17728.3−11%

07Star, IDID20,87428.4–

08Rigby, IDID5,75728.5−2%

09Nampa, IDID120,38428.5−6%

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, IDID46,71531.3−0%

21Rupert, IDID6,46031.7+6%

22Mountain Home, IDID16,77931.7−1%

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