RANKING · 2020 CENSUS · 29 SHOWN OF 29

Youngest by median age, Utah counties · 2020

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, UTUT759,85925.9+11%

02Cache County, UTUT145,00026.3+10%

03Iron County, UTUT67,14128.9+19%

04Juab County, UTUT13,56730.7+16%

05Tooele County, UTUT87,46131.4+16%

06Davis County, UTUT381,22731.4+17%

07Uintah County, UTUT38,27831.5+9%

08Weber County, UTUT278,17432.9+12%

09Salt Lake County, UTUT1,220,91632.9+14%

10Box Elder County, UTUT65,32033.0+18%

11Duchesne County, UTUT20,85633.3+18%

12Morgan County, UTUT13,38333.6+18%

13Sanpete County, UTUT31,45333.7+33%

14Beaver County, UTUT7,30134.4+12%

15San Juan County, UTUT14,54234.6+36%

16Wasatch County, UTUT38,51435.3+20%

17Millard County, UTUT14,05736.1+21%

18Sevier County, UTUT22,82736.3+20%

19Washington County, UTUT213,67037.6+21%

20Rich County, UTUT2,68738.0+11%

21Emery County, UTUT10,17738.3+27%

22Carbon County, UTUT20,68038.6+15%

23Grand County, UTUT9,79040.5+10%

24Summit County, UTUT43,14140.8+23%

25Garfield County, UTUT5,25643.3+28%

26Piute County, UTUT1,50944.7+15%

27Kane County, UTUT8,59744.9+15%

28Wayne County, UTUT2,58747.3+39%

29Daggett County, UTUT93447.6+21%

SHOWING 1–29 OF 29

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