Utah Population By County in 2018
Updated on January 27, 2024.
According to the US Census Bureau population estimates, there were 3,155,153 people living in Utah in 2018. Salt Lake County was the most populated county with 1,148,949 residents, followed by Utah County with 622,076 residents, and Davis County with 351,154 residents. Daggett County with a population of 984 was the least populated county in Utah in 2018.
Use the map below to interactively explore the population for each county in Utah in 2018. The data can also be explored further by sorting and filtering with the table below.
You can see similar information for other states and by state for the United States.
Related Topics: Utah Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
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Utah Population By County (2018)
Table of Utah Population By County in 2018
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| County | Population | % of State Population |
|---|---|---|
| Beaver | 6,620 | 0.21% |
| Box Elder | 54,807 | 1.74% |
| Cache | 126,574 | 4.01% |
| Carbon | 20,248 | 0.64% |
| Daggett | 984 | 0.03% |
| Davis | 351,154 | 11.13% |
| Duchesne | 19,902 | 0.63% |
| Emery | 10,039 | 0.32% |
| Garfield | 4,970 | 0.16% |
| Grand | 9,715 | 0.31% |
| Iron | 52,959 | 1.68% |
| Juab | 11,639 | 0.37% |
| Kane | 7,663 | 0.24% |
| Millard | 12,941 | 0.41% |
| Morgan | 11,971 | 0.38% |
| Piute | 1,434 | 0.05% |
| Rich | 2,455 | 0.08% |
| Salt Lake | 1,148,949 | 36.42% |
| San Juan | 15,336 | 0.49% |
| Sanpete | 30,529 | 0.97% |
| Sevier | 21,516 | 0.68% |
| Summit | 41,879 | 1.33% |
| Tooele | 69,946 | 2.22% |
| Uintah | 35,407 | 1.12% |
| Utah | 622,076 | 19.72% |
| Wasatch | 33,278 | 1.06% |
| Washington | 172,051 | 5.45% |
| Wayne | 2,657 | 0.08% |
| Weber | 255,454 | 8.10% |