RANKING · 2010 CENSUS · 29 SHOWN OF 29

Fastest growing, Utah counties · 2010

Utah counties ranked by population growth 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 shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Wasatch County, UTUT38,514+54.7%+8%

02Washington County, UTUT213,670+52.9%−39%

03Tooele County, UTUT87,461+42.9%−19%

04Utah County, UTUT759,859+40.2%+1%

05Iron County, UTUT67,141+36.7%−41%

06Morgan County, UTUT13,383+32.8%+13%

07Duchesne County, UTUT20,856+29.5%+116%

08Uintah County, UTUT38,278+29.2%+115%

09Davis County, UTUT381,227+28.2%+4%

10Juab County, UTUT13,567+24.4%−41%

11Cache County, UTUT145,000+23.3%−23%

12Sanpete County, UTUT31,453+22.2%−44%

13Summit County, UTUT43,141+22.2%−76%

14Kane County, UTUT8,597+17.8%+5%

15Weber County, UTUT278,174+17.7%−27%

16Box Elder County, UTUT65,320+16.9%−1%

17Rich County, UTUT2,687+15.5%+13%

18Daggett County, UTUT934+15.0%−55%

19Salt Lake County, UTUT1,220,916+14.6%−38%

20Wayne County, UTUT2,587+10.7%−30%

21Sevier County, UTUT22,827+10.4%−53%

22Beaver County, UTUT7,301+10.4%−60%

23Garfield County, UTUT5,256+9.2%−51%

24Grand County, UTUT9,790+8.7%−69%

25Piute County, UTUT1,509+8.4%−32%

26Carbon County, UTUT20,680+4.8%+401%

27San Juan County, UTUT14,542+2.3%−84%

28Emery County, UTUT10,177+1.1%−79%

29Millard County, UTUT14,057+0.8%−92%

SHOWING 1–29 OF 29

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