RANKING · 2010 CENSUS · 29 SHOWN OF 29

Fastest shrinking, Utah counties · 2010

Utah counties with the steepest population decline from the 2000 census to 2010. 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

01Millard County, UTUT14,057+0.8%−8.7 pts

02Emery County, UTUT10,177+1.1%−4.0 pts

03San Juan County, UTUT14,542+2.3%−11.9 pts

04Carbon County, UTUT20,680+4.8%+3.8 pts

05Piute County, UTUT1,509+8.4%−3.9 pts

06Grand County, UTUT9,790+8.7%−19.5 pts

07Garfield County, UTUT5,256+9.2%−9.7 pts

08Beaver County, UTUT7,301+10.4%−15.6 pts

09Sevier County, UTUT22,827+10.4%−11.7 pts

10Wayne County, UTUT2,587+10.7%−4.5 pts

11Salt Lake County, UTUT1,220,916+14.6%−9.1 pts

12Daggett County, UTUT934+15.0%−18.5 pts

13Rich County, UTUT2,687+15.5%+1.8 pts

14Box Elder County, UTUT65,320+16.9%−0.2 pts

15Weber County, UTUT278,174+17.7%−6.5 pts

16Kane County, UTUT8,597+17.8%+0.9 pts

17Summit County, UTUT43,141+22.2%−69.5 pts

18Sanpete County, UTUT31,453+22.2%−17.8 pts

19Cache County, UTUT145,000+23.3%−6.9 pts

20Juab County, UTUT13,567+24.4%−17.2 pts

21Davis County, UTUT381,227+28.2%+1.1 pts

22Uintah County, UTUT38,278+29.2%+15.6 pts

23Duchesne County, UTUT20,856+29.5%+15.8 pts

24Morgan County, UTUT13,383+32.8%+3.9 pts

25Iron County, UTUT67,141+36.7%−25.8 pts

26Utah County, UTUT759,859+40.2%+0.4 pts

27Tooele County, UTUT87,461+42.9%−10.2 pts

28Washington County, UTUT213,670+52.9%−33.2 pts

29Wasatch County, UTUT38,514+54.7%+3.8 pts

SHOWING 1–29 OF 29

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