RANKING · 2020 CENSUS · 29 SHOWN OF 29

Most sparsely populated, Utah counties · 2020

Utah counties with the fewest residents per square mile (2023). This list covers the 29 counties in Utah that qualify, ranked against each other statewide.

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YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Garfield County, UTUT5,2561+7%

02Wayne County, UTUT2,5871−1%

03Daggett County, UTUT9341+2%

04San Juan County, UTUT14,5422+1%

05Piute County, UTUT1,5092+0%

06Millard County, UTUT14,0572+5%

07Kane County, UTUT8,5972+27%

08Emery County, UTUT10,1772−10%

09Rich County, UTUT2,6872+28%

10Grand County, UTUT9,7903+14%

11Beaver County, UTUT7,3013+18%

12Juab County, UTUT13,5673+43%

13Duchesne County, UTUT20,8566+36%

14Uintah County, UTUT38,2788+41%

15Box Elder County, UTUT65,32010+35%

16Tooele County, UTUT87,46110+78%

17Sevier County, UTUT22,82711+14%

18Carbon County, UTUT20,68014−0%

19Iron County, UTUT67,14117+70%

20Sanpete County, UTUT31,45318+25%

21Morgan County, UTUT13,38320+72%

22Summit County, UTUT43,14123+42%

23Wasatch County, UTUT38,51430+129%

24Washington County, UTUT213,67074+100%

25Cache County, UTUT145,000114+46%

26Utah County, UTUT759,859329+79%

27Weber County, UTUT278,174429+33%

28Davis County, UTUT381,2271,117+52%

29Salt Lake County, UTUT1,220,9161,574+32%

SHOWING 1–29 OF 29

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES