RANKING · 2025 ESTIMATES · 29 SHOWN OF 29

Fastest growing, Utah counties

Utah counties ranked by population growth from the 2020 census to 2025. This list covers the 29 counties in Utah that qualify, ranked against each other statewide.

Flip the list · Fastest shrinking, US counties →

UtahAll states All rankings

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

01Tooele County, UTUT87,461+20.3%−32.8 pts

02Washington County, UTUT213,670+18.5%−67.5 pts

03Iron County, UTUT67,141+17.2%−45.3 pts

04Utah County, UTUT759,859+15.2%−24.6 pts

05Juab County, UTUT13,567+15.1%−26.5 pts

06Box Elder County, UTUT65,320+13.3%−3.9 pts

07Kane County, UTUT8,597+12.1%−4.8 pts

08Wasatch County, UTUT38,514+10.7%−40.1 pts

09Sanpete County, UTUT31,453+10.6%−29.4 pts

10Cache County, UTUT145,000+8.9%−21.3 pts

11Morgan County, UTUT13,383+8.8%−20.1 pts

12Millard County, UTUT14,057+8.3%−1.1 pts

13Uintah County, UTUT38,278+7.5%−6.1 pts

14Rich County, UTUT2,687+7.1%−6.6 pts

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

16Weber County, UTUT278,174+6.1%−18.0 pts

17Sevier County, UTUT22,827+6.1%−16.0 pts

18Davis County, UTUT381,227+5.1%−22.1 pts

19Piute County, UTUT1,509+4.9%−7.4 pts

20Wayne County, UTUT2,587+4.1%−11.2 pts

21Emery County, UTUT10,177+3.6%−1.5 pts

22Garfield County, UTUT5,256+3.4%−15.6 pts

23Beaver County, UTUT7,301+3.2%−22.8 pts

24Salt Lake County, UTUT1,220,916+3.0%−20.7 pts

25Summit County, UTUT43,141+1.9%−89.8 pts

26Carbon County, UTUT20,680+1.3%+0.4 pts

27Grand County, UTUT9,790+1.3%−26.9 pts

28San Juan County, UTUT14,542+0.2%−14.0 pts

29Daggett County, UTUT934-0.1%−33.6 pts

SHOWING 1–29 OF 29

Download CSV (full list, 29 rows)

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