Utah 2015 Population By County
Updated on June 22, 2021.

According to the US Census Bureau population estimates, there were 2,981,835 people living in Utah in 2015. Salt Lake County was the most populated county with 1,102,273 residents, followed by Utah County with 572,667 residents, and Davis County with 334,597 residents. Daggett County with a population of 1,107 was the least populated county in Utah in 2015.

Use the map below to interactively explore the population of each county in Utah in 2015. The data can also be explored further by sorting and filtering with the table below.

Utah 2015 Population By County
See also Population estimate for other years:
Table of Utah 2015 Population By County
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County Population % of State Population
Beaver 6,353 0.21%
Box Elder 51,826 1.74%
Cache 119,697 4.01%
Carbon 20,391 0.68%
Daggett 1,107 0.04%
Davis 334,597 11.22%
Duchesne 20,748 0.70%
Emery 10,359 0.35%
Garfield 4,962 0.17%
Grand 9,551 0.32%
Iron 48,113 1.61%
Juab 10,551 0.35%
Kane 7,039 0.24%
Millard 12,620 0.42%
Morgan 11,039 0.37%
Piute 1,491 0.05%
Rich 2,300 0.08%
Salt Lake 1,102,273 36.97%
San Juan 15,239 0.51%
Sanpete 28,654 0.96%
Sevier 20,858 0.70%
Summit 39,640 1.33%
Tooele 62,639 2.10%
Uintah 37,791 1.27%
Utah 572,667 19.20%
Wasatch 29,118 0.98%
Washington 154,650 5.19%
Wayne 2,690 0.09%
Weber 242,872 8.15%