RANKING · 2010 CENSUS · 29 SHOWN OF 29

Youngest by median age, Utah counties · 2010

Utah counties with the youngest median age (2023 ACS). This list covers the 29 counties in Utah that qualify, ranked against each other statewide.

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RELATEDOldest by median age Most foreign-born residents Highest uninsured rate Most women Most men Highest disability rate

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Utah County, UTUT759,85924.6+6%

02Cache County, UTUT145,00025.5+7%

03Iron County, UTUT67,14126.8+11%

04Sanpete County, UTUT31,45328.4+12%

05Uintah County, UTUT38,27829.1+0%

06Davis County, UTUT381,22729.2+9%

07Juab County, UTUT13,56729.3+11%

08Tooele County, UTUT87,46129.6+9%

09Duchesne County, UTUT20,85629.7+5%

10San Juan County, UTUT14,54229.9+17%

11Box Elder County, UTUT65,32030.6+9%

12Weber County, UTUT278,17430.7+5%

13Salt Lake County, UTUT1,220,91630.8+7%

14Wasatch County, UTUT38,51431.6+7%

15Beaver County, UTUT7,30131.9+4%

16Morgan County, UTUT13,38332.0+12%

17Washington County, UTUT213,67032.5+5%

18Emery County, UTUT10,17732.8+9%

19Sevier County, UTUT22,82732.8+8%

20Millard County, UTUT14,05733.7+13%

21Carbon County, UTUT20,68034.4+2%

22Rich County, UTUT2,68734.7+1%

23Wayne County, UTUT2,58737.1+9%

24Summit County, UTUT43,14137.1+11%

25Garfield County, UTUT5,25639.0+15%

26Grand County, UTUT9,79039.9+8%

27Piute County, UTUT1,50940.5+4%

28Daggett County, UTUT93442.8+9%

29Kane County, UTUT8,59744.5+14%

SHOWING 1–29 OF 29

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES