How many counties in Utah? All 29 listed
Quick answer
Utah has 29 counties and county equivalents holding 3,331,187 residents. The most populous county in Utah is Salt Lake County with 1,184,689 residents; the smallest is Daggett County. County boundaries divide the state's land area — measured in square miles by the Census Bureau — into the units used for property assessment, elections and local sales tax. The statewide sales tax base rate is 4.85%, before county and city add-ons.
All 29 counties
Ranked by population, Census 2019-2023 ACS 5-year estimates.
| County | Population | Median income | Median home value | Median rent |
|---|---|---|---|---|
| Salt Lake County | 1,184,689 | $94,658 | $484,500 | $1,493 |
| Utah County | 683,622 | $96,877 | $489,200 | $1,441 |
| Davis County | 366,742 | $108,058 | $470,500 | $1,516 |
| Weber County | 266,183 | $87,083 | $389,200 | $1,269 |
| Washington County | 189,827 | $76,411 | $465,600 | $1,464 |
| Cache County | 137,031 | $78,292 | $392,800 | $1,137 |
| Tooele County | 76,648 | $101,846 | $391,300 | $1,134 |
| Iron County | 60,201 | $65,527 | $342,900 | $1,008 |
| Box Elder County | 59,725 | $77,865 | $357,400 | $1,028 |
| Summit County | 42,709 | $137,058 | $1,000,400 | $1,969 |
| Uintah County | 36,458 | $69,861 | $270,200 | $914 |
| Wasatch County | 35,808 | $115,146 | $724,400 | $1,905 |
| Sanpete County | 29,209 | $67,459 | $300,400 | $911 |
| Sevier County | 21,854 | $73,765 | $274,100 | $878 |
| Carbon County | 20,446 | $53,673 | $200,700 | $828 |
| Duchesne County | 19,932 | $74,738 | $253,600 | $934 |
| San Juan County | 14,466 | $54,890 | $189,900 | $805 |
| Millard County | 13,179 | $70,877 | $246,400 | $897 |
| Morgan County | 12,585 | $126,092 | $600,900 | $1,493 |
| Juab County | 12,273 | $89,803 | $369,800 | $917 |
| Emery County | 9,968 | $69,956 | $197,100 | $696 |
| Grand County | 9,697 | $62,521 | $480,900 | $1,021 |
| Kane County | 7,996 | $75,000 | $350,900 | $1,120 |
| Beaver County | 7,172 | $85,603 | $287,600 | $1,034 |
| Garfield County | 5,170 | $61,688 | $285,800 | $781 |
| Rich County | 2,588 | $76,875 | $291,200 | $743 |
| Wayne County | 2,557 | $70,074 | $364,800 | $1,018 |
| Piute County | 1,705 | $44,650 | $235,400 | $792 |
| Daggett County | 747 | $58,750 | $242,100 | $775 |
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
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