RANKING · 2010 CENSUS · 36 SHOWN OF 36

Oldest by median age, Idaho cities · 2010

Idaho cities ranked by median age of residents (2023 ACS). This list covers the 36 cities in Idaho that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros ZIP codes

RELATEDYoungest 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

01Garden City, IDID13,04743.2+22%

02Eagle, IDID34,65840.6+15%

03Lewiston, IDID34,71739.9+5%

04Hayden, IDID17,36339.4+12%

05Sandpoint, IDID10,64538.8+6%

06Weiser, IDID6,24938.7+8%

07Emmett, IDID8,90036.3+5%

08Coeur d'Alene, IDID58,17935.4+2%

09Boise City, IDID238,42935.3+8%

10Hailey, IDID10,05335.1+5%

11Payette, IDID8,81335.0+8%

12Rupert, IDID6,46033.3+5%

13Post Falls, IDID46,71533.0+5%

14Fruitland, IDID7,21332.7+4%

15Meridian, IDID142,98832.5+8%

16Rathdrum, IDID13,22732.3+13%

17Star, IDID20,87432.3+14%

18Idaho Falls, IDID71,78532.2−0%

19Kimberly, IDID5,79831.9−5%

20Twin Falls, IDID56,21631.9−6%

21Preston, IDID6,17731.7+12%

22Blackfoot, IDID13,36130.8−0%

23Burley, IDID12,40930.8−0%

24Middleton, IDID12,60030.5+10%

25Chubbuck, IDID16,82330.2+3%

26Pocatello, IDID58,77130.2+5%

27Nampa, IDID120,38430.1+6%

28Mountain Home, IDID16,77929.8−6%

29Ammon, IDID20,11929.6+3%

30Jerome, IDID13,73128.9−7%

31Caldwell, IDID76,62928.2−2%

32Kuna, IDID31,52528.1+8%

33Shelley, IDID5,30327.8+3%

34Rigby, IDID5,75727.6−3%

35Moscow, IDID26,72124.2−1%

36Rexburg, IDID40,33422.3+10%

SHOWING 1–36 OF 36

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