RANKING · 1990 CENSUS · 29 SHOWN OF 29

Youngest by median age, Utah counties · 1990

Utah counties with the youngest median age (1990 ACS). This list covers the 29 counties in Utah that qualify, ranked against each other statewide. The median across all 29 is 27.9.

Flip the list · Oldest by median age, US counties →

UtahAll states All rankings

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 –

01Utah County, UTUT759,85922.5–

02Cache County, UTUT145,00023.7–

03San Juan County, UTUT14,54224.0–

04Sanpete County, UTUT31,45324.2–

05Iron County, UTUT67,14124.6–

06Davis County, UTUT381,22724.8–

07Duchesne County, UTUT20,85625.0–

08Emery County, UTUT10,17725.4–

09Uintah County, UTUT38,27826.0–

10Millard County, UTUT14,05726.0–

11Morgan County, UTUT13,38326.3–

12Rich County, UTUT2,68726.5–

13Box Elder County, UTUT65,32026.9–

14Salt Lake County, UTUT1,220,91627.9–

15Wasatch County, UTUT38,51427.9–

16Tooele County, UTUT87,46128.0–

17Washington County, UTUT213,67028.2–

18Weber County, UTUT278,17428.9–

19Sevier County, UTUT22,82729.0–

20Summit County, UTUT43,14130.1–

21Juab County, UTUT13,56730.4–

22Wayne County, UTUT2,58730.7–

23Carbon County, UTUT20,68030.7–

24Kane County, UTUT8,59731.4–

25Garfield County, UTUT5,25631.5–

26Beaver County, UTUT7,30132.0–

27Daggett County, UTUT93432.4–

28Grand County, UTUT9,79034.0–

29Piute County, UTUT1,50939.1–

SHOWING 1–29 OF 29

Download CSV (full list, 29 rows)

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