RANKING · 1990 CENSUS · 29 SHOWN OF 29

Most densely populated, Utah counties · 1990

Utah counties ranked by residents per square mile (1990). This list covers the 29 counties in Utah that qualify, ranked against each other statewide. The median across all 29 is 5.

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SAME RANKING BYCities States Metros

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

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS –

01Salt Lake County, UTUT1,220,916964–

02Davis County, UTUT381,227579–

03Weber County, UTUT278,174259–

04Utah County, UTUT759,859132–

05Cache County, UTUT145,00060–

06Washington County, UTUT213,67020–

07Carbon County, UTUT20,68014–

08Sanpete County, UTUT31,45310–

09Morgan County, UTUT13,3839–

10Wasatch County, UTUT38,5149–

11Summit County, UTUT43,1418–

12Sevier County, UTUT22,8278–

13Box Elder County, UTUT65,3206–

14Iron County, UTUT67,1416–

15Uintah County, UTUT38,2785–

16Duchesne County, UTUT20,8564–

17Tooele County, UTUT87,4614–

18Emery County, UTUT10,1772–

19Beaver County, UTUT7,3012–

20Grand County, UTUT9,7902–

21Juab County, UTUT13,5672–

22Piute County, UTUT1,5092–

23Rich County, UTUT2,6872–

24Millard County, UTUT14,0572–

25San Juan County, UTUT14,5422–

26Kane County, UTUT8,5971–

27Daggett County, UTUT9341–

28Wayne County, UTUT2,5871–

29Garfield County, UTUT5,2561–

SHOWING 1–29 OF 29

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