Data / Rankings / Population / Counties in Utah

Counties in Utah by population

Salt Lake County had the highest population of 29 counties in 2024, at 1.22 million. Daggett County had the lowest, at 952. The median was 20,676 and the figure for Utah was 3.5 million. Source: the U.S. Census Bureau.

Highest1,217,454Salt Lake County
Lowest952Daggett County
Median20,67629 counties
Utah3,502,983History

All counties, 2024

CSVChart (SVG)

Salt Lake CountySalt Lake County: 1,217,454 persons1,217,454Utah CountyUtah County: 745,668 persons745,668Davis CountyDavis County: 378,462 persons378,462Weber CountyWeber County: 276,217 persons276,217Washington CountyWashington County: 208,431 persons208,431Cache CountyCache County: 144,667 persons144,667Tooele CountyTooele County: 84,828 persons84,828Iron CountyIron County: 65,559 persons65,559Box Elder CountyBox Elder County: 63,985 persons63,985Summit CountySummit County: 43,250 persons43,250Uintah CountyUintah County: 38,154 persons38,154Wasatch CountyWasatch County: 37,849 persons37,849Sanpete CountySanpete County: 30,881 persons30,881Sevier CountySevier County: 22,592 persons22,592Duchesne CountyDuchesne County: 20,676 persons20,676Carbon CountyCarbon County: 20,600 persons20,600San Juan CountySan Juan County: 14,499 persons14,499Millard CountyMillard County: 13,913 persons13,913Juab CountyJuab County: 13,324 persons13,324Morgan CountyMorgan County: 13,110 persons13,110Emery CountyEmery County: 10,142 persons10,142Grand CountyGrand County: 9,700 persons9,700Kane CountyKane County: 8,491 persons8,491Beaver CountyBeaver County: 7,362 persons7,362Garfield CountyGarfield County: 5,321 persons5,321Rich CountyRich County: 2,740 persons2,740Wayne CountyWayne County: 2,609 persons2,609Piute CountyPiute County: 1,547 persons1,547Daggett CountyDaggett County: 952 persons952
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2024
persons		Change on 2023
1Salt Lake County1,217,454+1%
2Utah County745,668+2.7%
3Davis County378,462+1%
4Weber County276,217+1.3%
5Washington County208,431+2.7%
6Cache County144,667+1.2%
7Tooele County84,828+3.1%
8Iron County65,559+1.9%
9Box Elder County63,985+1.9%
10Summit County43,250+0.6%
11Uintah County38,154+0.8%
12Wasatch County37,849+1.6%
13Sanpete County30,881+1%
14Sevier County22,592+1%
15Duchesne County20,676+0.9%
16Carbon County20,600-0.1%
17San Juan County14,499+1.2%
18Millard County13,913+1.8%
19Juab County13,324+2.3%
20Morgan County13,110+1%
21Emery County10,142+0.1%
22Grand County9,700-0.8%
23Kane County8,491+0.7%
24Beaver County7,362+1.3%
25Garfield County5,321-0.2%
26Rich County2,740+2.7%
27Wayne County2,609-0.3%
28Piute County1,547-0.4%
29Daggett County952-3.4%

Other periods

About this ranking

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

Which county has the highest population?

Salt Lake County, with 1.22 million in 2024, according to the U.S. Census Bureau.

Which county has the lowest population?

Daggett County, with 952 in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved 2026-10-08.

Population: other rankings

Counties in Utah: more rankings