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. The median across all 36 is 35.0. Biggest climber in the top 100 since 2020: Chubbuck, ID, up 8 places to #16.

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SAME RANKING BYCounties States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01▲1Eagle, IDID34,65847.6+35%

02▼1Garden City, IDID13,04742.3+19%

03Hayden, IDID17,36342.1+19%

04▲1Sandpoint, IDID10,64541.5+14%

05▲3Hailey, IDID10,05341.3+24%

06▼2Weiser, IDID6,24941.1+14%

07▼1Star, IDID20,87440.3+42%

08▲1Coeur d'Alene, IDID58,17940.1+15%

09▼2Lewiston, IDID34,71739.8+5%

10▲2Boise City, IDID238,42938.6+18%

11▲5Meridian, IDID142,98837.5+25%

12▲1Rathdrum, IDID13,22737.1+30%

13▼3Payette, IDID8,81336.5+13%

14▼3Emmett, IDID8,90036.3+5%

15▲2Middleton, IDID12,60036.1+30%

16▲8Chubbuck, IDID16,82335.9+23%

17▲1Twin Falls, IDID56,21635.1+4%

18▼3Post Falls, IDID46,71535.0+12%

19▼5Fruitland, IDID7,21334.8+11%

20Blackfoot, IDID13,36134.7+12%

21▲1Preston, IDID6,17734.2+21%

22▲1Nampa, IDID120,38433.9+19%

23▼4Idaho Falls, IDID71,78533.7+4%

24▼3Pocatello, IDID58,77133.1+15%

25▲6Ammon, IDID20,11932.9+14%

26▲1Kimberly, IDID5,79832.2−4%

27▲3Kuna, IDID31,52531.8+22%

28▼2Mountain Home, IDID16,77931.70%

29Caldwell, IDID76,62931.5+9%

30▲4Rigby, IDID5,75731.4+10%

31▼3Burley, IDID12,40931.2+1%

32▲1Jerome, IDID13,73130.90%

33▼1Shelley, IDID5,30330.8+14%

34▼9Rupert, IDID6,46029.5−7%

35Moscow, IDID26,72125.7+5%

36Rexburg, IDID40,33421.0+3%

SHOWING 1–36 OF 36

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES