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)
Table of Utah Population By County in 2018
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| 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% |
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