RANKING · 2024 ACS · 29 SHOWN OF 29

Oldest by median age, Utah counties

Utah counties ranked by median age of residents (2024 ACS). This list covers the 29 counties in Utah that qualify, ranked against each other statewide. The median across all 29 is 34.4.

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SAME RANKING BYCities 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

01▲3Piute County, UTUT1,50948.3+24%

02Wayne County, UTUT2,58746.0+35%

03▼2Daggett County, UTUT93446.0+17%

04▼1Kane County, UTUT8,59743.3+11%

05▲1Summit County, UTUT43,14141.5+25%

06▲1Grand County, UTUT9,79040.8+11%

07▼2Garfield County, UTUT5,25640.7+20%

08▲3Washington County, UTUT213,67039.1+26%

09Emery County, UTUT10,17738.9+29%

10▼2Carbon County, UTUT20,68038.6+15%

11▼1Rich County, UTUT2,68738.1+11%

12▲2Wasatch County, UTUT38,51436.8+25%

13▼1Sevier County, UTUT22,82736.8+21%

14▲1San Juan County, UTUT14,54235.0+37%

15▼2Millard County, UTUT14,05734.4+15%

16Beaver County, UTUT7,30134.4+12%

17▲2Duchesne County, UTUT20,85634.1+20%

18▲4Salt Lake County, UTUT1,220,91634.0+18%

19▼2Sanpete County, UTUT31,45333.8+34%

20▲1Weber County, UTUT278,17433.7+15%

21▼3Morgan County, UTUT13,38333.3+17%

22▼2Box Elder County, UTUT65,32033.3+19%

23Uintah County, UTUT38,27833.2+14%

24▲1Davis County, UTUT381,22732.5+21%

25▼1Tooele County, UTUT87,46132.2+19%

26Juab County, UTUT13,56730.6+15%

27Iron County, UTUT67,14130.2+25%

28Cache County, UTUT145,00026.2+10%

29Utah County, UTUT759,85925.8+11%

SHOWING 1–29 OF 29

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