RANKING · 2010 CENSUS · 29 SHOWN OF 29

Youngest by median age, Utah counties · 2010

Utah counties with the youngest median age (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

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, UTUT38,27829.10%

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