RANKING · 2000 CENSUS · 29 SHOWN OF 29

Youngest by median age, Utah counties · 2000

Utah counties with the youngest median age (2000 ACS). This list covers the 29 counties in Utah that qualify, ranked against each other statewide. The median across all 29 is 29.5.

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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 1990

01Utah County, UTUT759,85923.3+4%

02Cache County, UTUT145,00023.9+1%

03Iron County, UTUT67,14124.2−1%

04Sanpete County, UTUT31,45325.3+4%

05San Juan County, UTUT14,54225.5+6%

06Juab County, UTUT13,56726.5−13%

07Davis County, UTUT381,22726.8+8%

08Tooele County, UTUT87,46127.1−3%

09Box Elder County, UTUT65,32028.0+4%

10Duchesne County, UTUT20,85628.3+13%

11Morgan County, UTUT13,38328.5+8%

12Salt Lake County, UTUT1,220,91628.9+4%

13Uintah County, UTUT38,27829.0+12%

14Weber County, UTUT278,17429.3+1%

15Wasatch County, UTUT38,51429.5+6%

16Millard County, UTUT14,05729.9+15%

17Emery County, UTUT10,17730.1+19%

18Sevier County, UTUT22,82730.3+4%

19Beaver County, UTUT7,30130.8−4%

20Washington County, UTUT213,67031.0+10%

21Summit County, UTUT43,14133.3+11%

22Carbon County, UTUT20,68033.6+9%

23Garfield County, UTUT5,25633.8+7%

24Wayne County, UTUT2,58734.1+11%

25Rich County, UTUT2,68734.3+29%

26Grand County, UTUT9,79036.9+8%

27Piute County, UTUT1,50938.90%

28Kane County, UTUT8,59739.1+25%

29Daggett County, UTUT93439.2+21%

SHOWING 1–29 OF 29

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