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. The median across all 29 is +6.4%. Biggest climber in the top 100 since 2020: Sanpete County, UT, up 13 places to #9.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01▲4Tooele County, UTUT87,461+20.3%−32.8 pts

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

03▲3Iron County, UTUT67,141+17.2%−45.3 pts

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

05▲7Juab County, UTUT13,567+15.1%−26.5 pts

06▲4Box Elder County, UTUT65,320+13.3%−3.9 pts

07▲9Kane County, UTUT8,597+12.1%−4.8 pts

08▼7Wasatch County, UTUT38,514+10.7%−40.1 pts

09▲13Sanpete County, UTUT31,453+10.6%−29.4 pts

10▼2Cache County, UTUT145,000+8.9%−21.3 pts

11▼8Morgan County, UTUT13,383+8.8%−20.1 pts

12▲8Millard County, UTUT14,057+8.3%−1.1 pts

13▲2Uintah County, UTUT38,278+7.5%−6.1 pts

14Rich County, UTUT2,687+7.1%−6.6 pts

15▲3Duchesne County, UTUT20,856+6.4%−7.2 pts

16▼3Weber County, UTUT278,174+6.1%−18.0 pts

17▲4Sevier County, UTUT22,827+6.1%−16.0 pts

18▼11Davis County, UTUT381,227+5.1%−22.1 pts

19▲7Piute County, UTUT1,509+4.9%−7.4 pts

20▲8Wayne County, UTUT2,587+4.1%−11.2 pts

21▲6Emery County, UTUT10,177+3.6%−1.5 pts

22▲2Garfield County, UTUT5,256+3.4%−15.6 pts

23▼6Beaver County, UTUT7,301+3.2%−22.8 pts

24▼13Salt Lake County, UTUT1,220,916+3.0%−20.7 pts

25▼16Summit County, UTUT43,141+1.9%−89.8 pts

26▼1Carbon County, UTUT20,680+1.3%+0.4 pts

27▼8Grand County, UTUT9,790+1.3%−26.9 pts

28▼5San Juan County, UTUT14,542+0.2%−14.0 pts

29Daggett County, UTUT934-0.1%−33.6 pts

SHOWING 1–29 OF 29

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES