Utah Population By County in 2018
Updated on June 22, 2021.

According to the US Census Bureau population estimates, there were 3,153,550 people living in Utah in 2018. Salt Lake County was the most populated county with 1,148,692 residents, followed by Utah County with 621,520 residents, and Davis County with 351,101 residents. Daggett County with a population of 974 was the least populated county in Utah in 2018.

Use the map below to interactively explore the population of each county in Utah in 2018. The data can also be explored further by sorting and filtering with the table below.

Hover/Click on the counties to see the values.
Utah Population By County (2018)
See also Population estimate for other years:
Table of Utah Population By County in 2018
Items per page:
0 of 0
County Population % of State Population
Beaver 6,625 0.21%
Box Elder 54,906 1.74%
Cache 126,400 4.01%
Carbon 20,233 0.64%
Daggett 974 0.03%
Davis 351,101 11.13%
Duchesne 19,943 0.63%
Emery 10,003 0.32%
Garfield 5,002 0.16%
Grand 9,686 0.31%
Iron 52,678 1.67%
Juab 11,629 0.37%
Kane 7,677 0.24%
Millard 12,987 0.41%
Morgan 11,956 0.38%
Piute 1,438 0.05%
Rich 2,456 0.08%
Salt Lake 1,148,692 36.42%
San Juan 15,358 0.49%
Sanpete 30,503 0.97%
Sevier 21,497 0.68%
Summit 41,890 1.33%
Tooele 69,989 2.22%
Uintah 35,405 1.12%
Utah 621,520 19.71%
Wasatch 33,067 1.05%
Washington 171,567 5.44%
Wayne 2,671 0.09%
Weber 255,697 8.11%