RANKING · 2000 CENSUS · 36 SHOWN OF 36

Oldest by median age, Idaho cities · 2000

Idaho cities ranked by median age of residents (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

01Lewiston, IDID34,71737.9+8%

02Sandpoint, IDID10,64536.5+1%

03Weiser, IDID6,24935.9+1%

04Garden City, IDID13,04735.4+22%

05Hayden, IDID17,36335.3+10%

06Eagle, IDID34,65835.2+3%

07Coeur d'Alene, IDID58,17934.8+1%

08Emmett, IDID8,90034.6+1%

09Twin Falls, IDID56,21633.8+3%

10Kimberly, IDID5,79833.5+6%

11Hailey, IDID10,05333.3+7%

12Boise City, IDID238,42932.8+2%

13Payette, IDID8,81332.4−2%

14Idaho Falls, IDID71,78532.3+7%

15Mountain Home, IDID16,77931.7−1%

16Rupert, IDID6,46031.7+6%

17Post Falls, IDID46,71531.30%

18Fruitland, IDID7,21331.3−5%

19Jerome, IDID13,73131.0−5%

20Blackfoot, IDID13,36130.9+2%

21Burley, IDID12,40930.9+4%

22Meridian, IDID142,98830.1+1%

23Chubbuck, IDID16,82329.3+10%

24Ammon, IDID20,11928.8+19%

25Caldwell, IDID76,62928.8−6%

26Pocatello, IDID58,77128.8−3%

27Rathdrum, IDID13,22728.6−4%

28Nampa, IDID120,38428.5−6%

29Rigby, IDID5,75728.5−2%

30Star, IDID20,87428.4–

31Preston, IDID6,17728.3−11%

32Middleton, IDID12,60027.7−4%

33Shelley, IDID5,30327.0+3%

34Kuna, IDID31,52526.1−4%

35Moscow, IDID26,72124.40%

36Rexburg, IDID40,33420.3+2%

SHOWING 1–36 OF 36

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