Sweetwater County, Wyoming
|Sweetwater County, Wyoming|
Location in the state of Wyoming
Wyoming's location in the U.S.
|Largest city||Rock Springs|
10,491 sq mi (27,172 km²)
10,425 sq mi (27,001 km²)
66 sq mi (171 km²), 0.63%
4/sq mi (1.62/km²)
Sweetwater County is a county located in the U.S. state of Wyoming. In area, it is the largest county in the state. As of 2010, the population was 43,806. Its county seat is Green River. It is north from the Colorado-Utah state line.
Sweetwater County was originally created on December 17, 1867 as a county within the Dakota Territory. The county was derived from land that was previously part of Laramie County. The county was originally named Carter County for Judge W.A. Carter of Fort Bridger In 1869, the newly established legislature of the Wyoming Territory renamed the county for the Sweetwater River.
Also in 1869, Uinta County was organized with land ceded by Sweetwater County. Johnson County, originally named Pease County, was formed from parts of Sweetwater County and Carbon County in 1875. In 1884, Sweetwater County lost territory when Fremont County was created. Sweetwater County also lost territory when Carbon County was formed in 1886. At that point, the county achieved its present boundaries except for minor adjustments in 1909, 1911, and 1951.
According to the United States Census Bureau, the county has a total area of 10,491 square miles (27,172 km²), of which 10,425 square miles (27,001 km²) is land and 66 square miles (171 km²) (0.63%) is water. The largest county in Wyoming, Sweetwater County is larger than six states and is the eighth largest county nationwide (not including boroughs and census areas in Alaska). Most of the Great Divide Basin lies within the county, comprising the county's northeast quadrant.
Adjacent counties 
- Fremont County (north)
- Carbon County (east)
- Moffat County, Colorado (south)
- Daggett County, Utah (southwest)
- Summit County, Utah (west-southwest)
- Uinta County (southwest)
- Lincoln County (west)
- Sublette County (northwest)
National protected areas 
- Ashley National Forest (part)
- Flaming Gorge National Recreation Area (part)
- Seedskadee National Wildlife Refuge
As of the census of 2000, there were 37,613 people, 14,105 households, and 10,099 families residing in the county. The population density was 4 people per square mile (1/km²). There were 15,921 housing units at an average density of 2 per square mile (1/km²). The racial makeup of the county was 91.62% White, 0.73% Black or African American, 1.01% Native American, 0.64% Asian, 0.04% Pacific Islander, 3.59% from other races, and 2.37% from two or more races. 9.42% of the population were Hispanic or Latino of any race. 16.4% are of English, 16.2% German, 9% Irish and 5% Italian ancestry.
There were 14,105 households out of which 38.20% had children under the age of 18 living with them, 57.80% were married couples living together, 9.20% had a female householder with no husband present, and 28.40% were non-families. 23.60% of all households were made up of individuals and 6.90% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 3.11.
In the county the population was spread out with 28.90% under the age of 18, 10.10% from 18 to 24, 29.30% from 25 to 44, 23.70% from 45 to 64, and 8.00% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 102.40 males. For every 100 females age 18 and over, there were 101.10 males.
The median income for a household in the county was $46,537, and the median income for a family was $54,173. Males had a median income of $45,678 versus $22,440 for females. The per capita income for the county was $19,575. About 5.40% of families and 7.80% of the population were below the poverty line, including 9.20% of those under age 18 and 7.00% of those age 65 or over.
Populated places 
Census-designated places 
Unincorporated communities 
Ghost towns 
See also 
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- Long, John H. (2006). "Wyoming: Individual County Chronologies". Wyoming Atlas of Historical County Boundaries. The Newberry Library. Retrieved 2011-09-01.
- Urbanek, Mae (1988). Wyoming Place Names. Missoula, MT: Mountain Press Publishing Company. ISBN 0-87842-204-8.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
|Wikimedia Commons has media related to: Sweetwater County, Wyoming|
||Sublette County||Fremont County|
|Lincoln County||Carbon County|
|Uinta County; Summit County, Utah; and Daggett County, Utah||Moffat County, Colorado|