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.

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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, UTUT38,27829.1+0%

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 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS