Utah Population By County in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the population of Utah was 3,283,785. Among all Utah counties, Salt Lake[object Promise] had the highest population (1,186,921), followed by Utah[object Promise] (663,559), and Davis[object Promise] (363,745). Daggett[object Promise] was the least populated county (952).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

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Utah Population By County in 2020
Utah Population By County in 2020
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County Population % of State Population
Beaver 7087 0.22
Box Elder 57946 1.77
Cache 133624 4.07
Carbon 20488 0.62
Daggett 952 0.03
Davis 363745 11.08
Duchesne 19617 0.60
Emery 9842 0.30
Garfield 5107 0.16
Grand 9677 0.30
Iron 57708 1.76
Juab 11818 0.36
Kane 7688 0.23
Millard 13049 0.40
Morgan 12381 0.38
Piute 1433 0.04
Rich 2500 0.08
Salt Lake 1186921 36.15
San Juan 14517 0.44
Sanpete 28521 0.87
Sevier 21561 0.66
Summit 42482 1.29
Tooele 73338 2.23
Uintah 35671 1.09
Utah 663559 20.21
Wasatch 35063 1.07
Washington 182009 5.54
Wayne 2508 0.08
Weber 262973 8.01