RANKING · 2010 CENSUS · 29 SHOWN OF 29

Most sparsely populated, Utah counties · 2010

Utah counties with the fewest residents per square mile (2010). This list covers the 29 counties in Utah that qualify, ranked against each other statewide. The median across all 29 is 8.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most population gained Most population lost Most densely populated

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 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS