RANKING · 2020 CENSUS · 29 SHOWN OF 29

Fastest shrinking, Utah counties · 2020

Utah counties with the steepest population decline from the 2010 census to 2020. This list covers the 29 counties in Utah that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Daggett County, UTUT934-11.7%−45.2 pts

02Wayne County, UTUT2,587-10.5%−25.8 pts

03Emery County, UTUT10,177-10.5%−15.6 pts

04Piute County, UTUT1,509-7.6%−20.0 pts

05Carbon County, UTUT20,680-4.6%−5.6 pts

06Garfield County, UTUT5,256-1.7%−20.7 pts

07San Juan County, UTUT14,542-1.5%−15.7 pts

08Sanpete County, UTUT31,453+2.2%−37.8 pts

09Sevier County, UTUT22,827+3.5%−18.6 pts

10Millard County, UTUT14,057+3.8%−5.7 pts

11Grand County, UTUT9,790+4.8%−23.4 pts

12Duchesne County, UTUT20,856+5.3%−8.3 pts

13Beaver County, UTUT7,301+6.7%−19.3 pts

14Kane County, UTUT8,597+7.6%−9.4 pts

15Uintah County, UTUT38,278+9.3%−4.3 pts

16Rich County, UTUT2,687+10.9%−2.8 pts

17Weber County, UTUT278,174+13.4%−10.7 pts

18Juab County, UTUT13,567+15.0%−26.6 pts

19Salt Lake County, UTUT1,220,916+15.1%−8.6 pts

20Box Elder County, UTUT65,320+15.4%−1.8 pts

21Summit County, UTUT43,141+16.6%−75.0 pts

22Cache County, UTUT145,000+18.2%−12.0 pts

23Davis County, UTUT381,227+18.3%−8.8 pts

24Iron County, UTUT67,141+24.1%−38.4 pts

25Tooele County, UTUT87,461+24.9%−28.3 pts

26Utah County, UTUT759,859+27.7%−12.2 pts

27Morgan County, UTUT13,383+29.8%+0.9 pts

28Washington County, UTUT213,670+30.5%−55.5 pts

29Wasatch County, UTUT38,514+47.8%−3.0 pts

SHOWING 1–29 OF 29

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS