Utah Counties by Population (2024)

Population

100K

200K

300K

400K

500K

600K

700K

800K

900K

1M

1.1M

Hover/click a county for data.

29 counties

County
2024 Pop.
Change (2020)
Area (mi²)
Density (/mi²)
Location
Salt Lake County1,185,057-0.16%2911,574Salt Lake County location
Utah County735,65610.86%774367Utah County location
Davis County376,5273.51%1251,159Davis County location
Weber County274,3924.34%236449Weber County location
Washington County207,17413.82%93785Washington County location
Cache County144,6418.24%450124Cache County location
Tooele County84,14714.71%2.7K12Tooele County location
Iron County65,91414.21%1.3K20Iron County location
Box Elder County63,84510.18%2.2K11Box Elder County location
Summit County42,473-0.04%72223Summit County location
Uintah County38,3907.62%1.7K9Uintah County location
Wasatch County37,6917.52%45432Wasatch County location
Sanpete County30,8638.19%61419Sanpete County location
Sevier County22,6455.06%73712Sevier County location
Duchesne County20,8126.08%1.2K6Duchesne County location
Carbon County20,6780.93%57114Carbon County location
San Juan County14,310-1.45%3K2San Juan County location
Millard County13,5313.61%2.6K2Millard County location
Juab County13,46013.88%1.3K4Juab County location
Morgan County13,1636.31%23522Morgan County location
Emery County10,1953.53%1.7K2Emery County location
Grand County9,641-0.34%1.4K3Grand County location
Kane County8,64712.4%1.5K2Kane County location
Beaver County7,1490.93%1K3Beaver County location
Garfield County5,3705.23%2K1Garfield County location
Rich County2,6917.43%3973Rich County location
Wayne County2,5943.64%9501Wayne County location
Piute County1,60711.6%2932Piute County location
Daggett County9691.79%2691Daggett County location
  1. Kem C. Gardner Policy Institute
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)

Sources