RANKING · 2020 CENSUS · 29 SHOWN OF 29

Oldest by median age, Utah counties · 2020

Utah counties ranked by median age of residents (2020 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

01Daggett County, UTUT93447.6+21%

02Wayne County, UTUT2,58747.3+39%

03Kane County, UTUT8,59744.9+15%

04Piute County, UTUT1,50944.7+15%

05Garfield County, UTUT5,25643.3+28%

06Summit County, UTUT43,14140.8+23%

07Grand County, UTUT9,79040.5+10%

08Carbon County, UTUT20,68038.6+15%

09Emery County, UTUT10,17738.3+27%

10Rich County, UTUT2,68738.0+11%

11Washington County, UTUT213,67037.6+21%

12Sevier County, UTUT22,82736.3+20%

13Millard County, UTUT14,05736.1+21%

14Wasatch County, UTUT38,51435.3+20%

15San Juan County, UTUT14,54234.6+36%

16Beaver County, UTUT7,30134.4+12%

17Sanpete County, UTUT31,45333.7+33%

18Morgan County, UTUT13,38333.6+18%

19Duchesne County, UTUT20,85633.3+18%

20Box Elder County, UTUT65,32033.0+18%

21Weber County, UTUT278,17432.9+12%

22Salt Lake County, UTUT1,220,91632.9+14%

23Uintah County, UTUT38,27831.5+9%

24Tooele County, UTUT87,46131.4+16%

25Davis County, UTUT381,22731.4+17%

26Juab County, UTUT13,56730.7+16%

27Iron County, UTUT67,14128.9+19%

28Cache County, UTUT145,00026.3+10%

29Utah County, UTUT759,85925.9+11%

SHOWING 1–29 OF 29

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