RANKING · 2010 CENSUS · 29 SHOWN OF 29

Most sparsely populated, Utah counties · 2010

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+9%

02Wayne County, UTUT2,5871+11%

03Daggett County, UTUT9342+15%

04Kane County, UTUT8,5972+18%

05Millard County, UTUT14,0572+1%

06San Juan County, UTUT14,5422+2%

07Piute County, UTUT1,5092+8%

08Rich County, UTUT2,6872+15%

09Emery County, UTUT10,1772+1%

10Grand County, UTUT9,7903+9%

11Beaver County, UTUT7,3013+10%

12Juab County, UTUT13,5673+24%

13Duchesne County, UTUT20,8566+29%

14Uintah County, UTUT38,2787+29%

15Tooele County, UTUT87,4618+43%

16Box Elder County, UTUT65,3209+17%

17Sevier County, UTUT22,82711+10%

18Iron County, UTUT67,14114+37%

19Carbon County, UTUT20,68014+5%

20Morgan County, UTUT13,38316+33%

21Sanpete County, UTUT31,45318+22%

22Summit County, UTUT43,14119+22%

23Wasatch County, UTUT38,51420+55%

24Washington County, UTUT213,67057+53%

25Cache County, UTUT145,00097+23%

26Utah County, UTUT759,859258+40%

27Weber County, UTUT278,174378+18%

28Davis County, UTUT381,227944+28%

29Salt Lake County, UTUT1,220,9161,368+15%

SHOWING 1–29 OF 29

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