Utah Counties by Population (2025)

Top 5 Most Populous Counties

Utah flag Salt Lake County

1,184,301

Utah flag Utah County

752,138

Utah flag Davis County

379,847

Utah flag Weber County

276,858

Utah flag Washington County

211,896

29 Counties

County
2025 Pop. ↓
Area (mi²)
Density
Change (2020)
Salt Lake County1,184,3017531,573-0.23%
Utah County752,1382,00437513.34%
Davis County379,8473251,1694.42%
Weber County276,8586114535.27%
Washington County211,8962,4288716.42%
Cache County146,8891,1651269.92%
Tooele County86,2437,0401217.57%
Iron County67,6173,2962117.16%
Box Elder County65,0065,7811112.18%
Summit County42,1871,87123-0.71%
Uintah County39,0334,48399.42%
Wasatch County38,2381,177329.08%
Sanpete County31,4491,5902010.25%
Sevier County22,9461,910126.46%
Duchesne County21,1473,23677.78%
Carbon County20,7471,479141.27%
San Juan County14,2627,8242-1.78%
Juab County13,8973,392417.58%
Millard County13,6256,78524.33%
Morgan County13,326609227.62%
Emery County10,2464,46324.05%
Grand County9,5763,6733-1.01%
Kane County8,8693,994215.29%
Beaver County7,0652,5833-0.25%
Garfield County5,4265,18016.33%
Rich County2,7121,02938.26%
Wayne County2,5742,46112.84%
Piute County1,664758215.56%
Daggett County9466971-0.63%

Overview of Utah Utah Counties

There are 29 counties in Utah.

The most populous county in Mississippi is Hinds County. Hinds County is home to 237,085 people, including the city of Jackson, which is the state’s capital and the most populous city in the state. Hinds County comprises about 7.94% of the state’s total population but has a population decline of 3.52% since 2010.

The second-most populous county in Mississippi is Harrison County with a population of 206,650, followed by DeSoto County with a population of 182,001. DeSoto County is the most densely populated county in Mississippi with 382.13 persons per square kilometer. Both Harrison County and DeSoto County have grown by double digits since the 2010 Census, with growth rates of 10.01% and 12.50%, respectively.

Mississippi Counties with Fewest Residents

Of Mississippi’s 82 counties, Issaquena County has the fewest residents with just 1,308. This accounts for just 0.04% of Mississippi’s total population. Since 2010, Issaquena County’s population has declined by 5.63%.

Sharkey County is the second-least populous county in Mississippi with 4,377 people, about 0.15% of the state’s total population. This is followed by Quitman County with a population of 7,051. Sharkey County has shrunk by 10.42% since 2010, and Quitman County has shrunk by 13.57%.

Mississippi Counties with Rapid Growth

Lafayette County has grown the most since 2010, growing by 15.19%. Lafayette County is the 14th-most populous county in Mississippi.

Other counties with double-digit growth are:

While some counties have experienced growth, many have experienced population decline. Quitman County has experienced the largest decline since 2010 with a decrease of 13.57%, followed by Coahoma County with a decline of 13.32%. Other counties with double-digit declines include:

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)