RANKING · 2024 ACS · 36 SHOWN OF 36

Oldest by median age, Idaho cities

Idaho cities ranked by median age of residents (2024 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

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 2000

01Eagle, IDID34,65847.6+35%

02Garden City, IDID13,04742.3+19%

03Hayden, IDID17,36342.1+19%

04Sandpoint, IDID10,64541.5+14%

05Hailey, IDID10,05341.3+24%

06Weiser, IDID6,24941.1+14%

07Star, IDID20,87440.3+42%

08Coeur d'Alene, IDID58,17940.1+15%

09Lewiston, IDID34,71739.8+5%

10Boise City, IDID238,42938.6+18%

11Meridian, IDID142,98837.5+25%

12Rathdrum, IDID13,22737.1+30%

13Payette, IDID8,81336.5+13%

14Emmett, IDID8,90036.3+5%

15Middleton, IDID12,60036.1+30%

16Chubbuck, IDID16,82335.9+23%

17Twin Falls, IDID56,21635.1+4%

18Post Falls, IDID46,71535.0+12%

19Fruitland, IDID7,21334.8+11%

20Blackfoot, IDID13,36134.7+12%

21Preston, IDID6,17734.2+21%

22Nampa, IDID120,38433.9+19%

23Idaho Falls, IDID71,78533.7+4%

24Pocatello, IDID58,77133.1+15%

25Ammon, IDID20,11932.9+14%

26Kimberly, IDID5,79832.2−4%

27Kuna, IDID31,52531.8+22%

28Mountain Home, IDID16,77931.7+0%

29Caldwell, IDID76,62931.5+9%

30Rigby, IDID5,75731.4+10%

31Burley, IDID12,40931.2+1%

32Jerome, IDID13,73130.9−0%

33Shelley, IDID5,30330.8+14%

34Rupert, IDID6,46029.5−7%

35Moscow, IDID26,72125.7+5%

36Rexburg, IDID40,33421.0+3%

SHOWING 1–36 OF 36

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES