Ranking of Utah Counties By Population in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the Population for Utah was 3.34M. Among all Utah counties, Salt Lake County had the highest population (1.19M), followed by Utah County (685.97K), and Davis County (367.50K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Utah counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Utah Counties By Population in 2021
Salt Lake
Utah
Davis
Weber
Washington
Cache
Tooele
Iron
Box Elder
Summit
Ranking of Utah Counties By Population in 2021
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Rank County Population
1 Salt Lake County 1186312
2 Utah County 685973
3 Davis County 367504
4 Weber County 266569
5 Washington County 191513
6 Cache County 137458
7 Tooele County 76775
8 Iron County 60520
9 Box Elder County 59685
10 Summit County 43179
11 Wasatch County 36246
12 Uintah County 36229
13 Sanpete County 29124
14 Sevier County 21894
15 Carbon County 20360
16 Duchesne County 19792
17 San Juan County 14498
18 Millard County 13192
19 Morgan County 12662
20 Juab County 12205
21 Emery County 9965
22 Grand County 9671
23 Kane County 7985
24 Beaver County 7213
25 Garfield County 5126
26 Rich County 2600
27 Wayne County 2560
28 Piute County 1492
29 Daggett County 982