RANKING · 2025 ESTIMATES · 29 SHOWN OF 29

Fastest shrinking, Utah counties

Utah counties with the steepest population decline from the 2020 census to 2025. 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, UTUT934-0.1%−33.6 pts

02San Juan County, UTUT14,542+0.2%−14.0 pts

03Grand County, UTUT9,790+1.3%−26.9 pts

04Carbon County, UTUT20,680+1.3%+0.4 pts

05Summit County, UTUT43,141+1.9%−89.8 pts

06Salt Lake County, UTUT1,220,916+3.0%−20.7 pts

07Beaver County, UTUT7,301+3.2%−22.8 pts

08Garfield County, UTUT5,256+3.4%−15.6 pts

09Emery County, UTUT10,177+3.6%−1.5 pts

10Wayne County, UTUT2,587+4.1%−11.2 pts

11Piute County, UTUT1,509+4.9%−7.4 pts

12Davis County, UTUT381,227+5.1%−22.1 pts

13Sevier County, UTUT22,827+6.1%−16.0 pts

14Weber County, UTUT278,174+6.1%−18.0 pts

15Duchesne County, UTUT20,856+6.4%−7.2 pts

16Rich County, UTUT2,687+7.1%−6.6 pts

17Uintah County, UTUT38,278+7.5%−6.1 pts

18Millard County, UTUT14,057+8.3%−1.1 pts

19Morgan County, UTUT13,383+8.8%−20.1 pts

20Cache County, UTUT145,000+8.9%−21.3 pts

21Sanpete County, UTUT31,453+10.6%−29.4 pts

22Wasatch County, UTUT38,514+10.7%−40.1 pts

23Kane County, UTUT8,597+12.1%−4.8 pts

24Box Elder County, UTUT65,320+13.3%−3.9 pts

25Juab County, UTUT13,567+15.1%−26.5 pts

26Utah County, UTUT759,859+15.2%−24.6 pts

27Iron County, UTUT67,141+17.2%−45.3 pts

28Washington County, UTUT213,670+18.5%−67.5 pts

29Tooele County, UTUT87,461+20.3%−32.8 pts

SHOWING 1–29 OF 29

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU POPULATION ESTIMATES