RANKING · 2010 CENSUS · 29 SHOWN OF 29

Oldest by median age, Utah counties · 2010

Utah counties ranked by median age of residents (2010 ACS). This list covers the 29 counties in Utah that qualify, ranked against each other statewide. The median across all 29 is 31.9.

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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

01Kane County, UTUT8,59744.5+14%

02Daggett County, UTUT93442.8+9%

03Piute County, UTUT1,50940.5+4%

04Grand County, UTUT9,79039.9+8%

05Garfield County, UTUT5,25639.0+15%

06Wayne County, UTUT2,58737.1+9%

07Summit County, UTUT43,14137.1+11%

08Rich County, UTUT2,68734.7+1%

09Carbon County, UTUT20,68034.4+2%

10Millard County, UTUT14,05733.7+13%

11Emery County, UTUT10,17732.8+9%

12Sevier County, UTUT22,82732.8+8%

13Washington County, UTUT213,67032.5+5%

14Morgan County, UTUT13,38332.0+12%

15Beaver County, UTUT7,30131.9+4%

16Wasatch County, UTUT38,51431.6+7%

17Salt Lake County, UTUT1,220,91630.8+7%

18Weber County, UTUT278,17430.7+5%

19Box Elder County, UTUT65,32030.6+9%

20San Juan County, UTUT14,54229.9+17%

21Duchesne County, UTUT20,85629.7+5%

22Tooele County, UTUT87,46129.6+9%

23Juab County, UTUT13,56729.3+11%

24Davis County, UTUT381,22729.2+9%

25Uintah County, UTUT38,27829.10%

26Sanpete County, UTUT31,45328.4+12%

27Iron County, UTUT67,14126.8+11%

28Cache County, UTUT145,00025.5+7%

29Utah County, UTUT759,85924.6+6%

SHOWING 1–29 OF 29

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