This is unchanged from the previous estimate.
Salt Lake County had the largest population in Utah in 2021.
The US Census Bureau found more than 73 percent of counties in the US saw a natural decrease in population in 2021. This is up from a 55.5 percent increase in 2020.
The Midwest suffered the most sustained population decreases, with many counties along the US East Coast and through the Rocky Mountains seeing increases.
The US population continues to grow, though at a slower rate than before.
Utah Counties By Population Change from 2020 to 2021
| County | 2020 Estimated Population | 2021 Estimated Population | % Change in Population From Year to Year |
|---|---|---|---|
| Washington County | 181,924 | 191,226 | 5.1% |
| Iron County | 57,640 | 60,519 | 5% |
| Tooele County | 73,281 | 76,640 | 4.6% |
| Kane County | 7,673 | 7,992 | 4.2% |
| Rich County | 2,504 | 2,597 | 3.7% |
| Piute County | 1,437 | 1,487 | 3.5% |
| Utah County | 663,143 | 684,986 | 3.3% |
| Wasatch County | 35,032 | 36,173 | 3.3% |
| Box Elder County | 57,908 | 59,688 | 3.1% |
| Cache County | 133,527 | 137,417 | 2.9% |
| Juab County | 11,824 | 12,155 | 2.8% |
| Daggett County | 952 | 976 | 2.5% |
| Beaver County | 7,076 | 7,249 | 2.4% |
| Wayne County | 2,497 | 2,558 | 2.4% |
| Morgan County | 12,392 | 12,657 | 2.1% |
| Sanpete County | 28,508 | 29,106 | 2.1% |
| Sevier County | 21,546 | 21,906 | 1.7% |
| Uintah County | 35,618 | 36,204 | 1.6% |
| Weber County | 262,828 | 267,066 | 1.6% |
| Summit County | 42,452 | 43,093 | 1.5% |
| Emery County | 9,837 | 9,967 | 1.3% |
| Millard County | 13,015 | 13,164 | 1.1% |
| Duchesne County | 19,581 | 19,790 | 1.1% |
| Davis County | 363,492 | 367,285 | 1% |
| Garfield County | 5,090 | 5,129 | 0.8% |
| Salt Lake County | 1,186,236 | 1,186,421 | 0% |
| Grand County | 9,681 | 9,663 | -0.2% |
| San Juan County | 14,525 | 14,489 | -0.2% |
| Carbon County | 20,465 | 20,372 | -0.5% |
ORGANIZATIONS IN THIS STORY
Granite• Salt Lake City City• City of Taylorsville• City of West Jordan• City of Cottonwood Heights• City of South Salt Lake• City of Midvale• Millcreek• City of Bluffdale• City of West Valley• City of South Jordan• City of Murray• City of Riverton• Copperton• Emigration Canyon• Kearns• City of Sandy• White City• Magna• Town Of Alta• City Of Herriman• City Of Holladay
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