RANKING · 1990 CENSUS · 29 SHOWN OF 29

Most densely populated, Utah counties · 1990

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

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SAME RANKING BYCities States Metros

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YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Salt Lake County, UTUT1,220,916964−19%

02Davis County, UTUT381,227579−21%

03Weber County, UTUT278,174259−19%

04Utah County, UTUT759,859132−28%

05Cache County, UTUT145,00060−23%

06Washington County, UTUT213,67020−46%

07Carbon County, UTUT20,68014−1%

08Sanpete County, UTUT31,45310−29%

09Morgan County, UTUT13,3839−22%

10Wasatch County, UTUT38,5149−34%

11Summit County, UTUT43,1418−48%

12Sevier County, UTUT22,8278−18%

13Box Elder County, UTUT65,3206−15%

14Iron County, UTUT67,1416−38%

15Uintah County, UTUT38,2785−12%

16Duchesne County, UTUT20,8564−12%

17Tooele County, UTUT87,4614−35%

18Emery County, UTUT10,1772−5%

19Beaver County, UTUT7,3012−21%

20Grand County, UTUT9,7902−22%

21Juab County, UTUT13,5672−29%

22Piute County, UTUT1,5092−11%

23Rich County, UTUT2,6872−12%

24Millard County, UTUT14,0572−9%

25San Juan County, UTUT14,5422−12%

26Kane County, UTUT8,5971−15%

27Daggett County, UTUT9341−25%

28Wayne County, UTUT2,5871−13%

29Garfield County, UTUT5,2561−16%

SHOWING 1–29 OF 29

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