Map of Sweetwater County, Wyoming


Written and Fact-checked by | Updated On: February 17, 2026, 20:21 ET

Map of Sweetwater County - Sweetwater County is a county located in the U.S. state of Wyoming. Sweetwater County Map showing cities, highways, important places and water bodies. Get Where is Sweetwater County located in the map, major cities in Sweetwater county, population, areas, and places of interest.

Map of Sweetwater County, Wyoming

Map of Sweetwater County, Wyoming

About Sweetwater County Map, Alabama: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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  • About Sweetwater County, Wyoming

    Sweetwater County is located in the southwestern part of Wyoming, United States. Established in 1867, it is one of the largest counties in the state and was named after the Sweetwater River. The county seat is Green River, while the largest city is Rock Springs, which serves as a major commercial and industrial center. The county has long been associated with mining, energy production, and western migration trails.

    Population

    According to the United States Census Bureau, the population of Sweetwater County was 42,272 as recorded in the 2020 Census. The majority of residents live in Rock Springs and Green River, with smaller communities spread across the county.

    Area and Geography

    According to the United States Census Bureau, Sweetwater County covers a total area of approximately 10,491 square miles, including about 10,427 square miles of land and 64 square miles of water. It is the largest county in Wyoming by area and features high desert landscapes, river valleys, and portions of the Green River Basin.

    Bordering Counties

    Sweetwater County shares borders with Sublette County to the north, Fremont County to the northeast, Carbon County to the east, the state of Colorado to the south, and the state of Utah to the southwest.

    Major Cities and Communities

    The principal communities in Sweetwater County include Rock Springs, Green River, and Point of Rocks, which serve as residential, industrial, and transportation hubs.

    Attractions and Recreation

    Sweetwater County offers outdoor recreation including boating, fishing, hiking, and off-road exploration. Flaming Gorge National Recreation Area and the Green River attract visitors for water sports and scenic canyon views, while historic trails reflect the county’s pioneer past.

    Transportation

    Major transportation routes serving Sweetwater County include Interstate 80 and U.S. Highway 191, providing key east-west connectivity across southern Wyoming and linking the county to neighboring states.

    Explore more counties in Wyoming Counties or view the complete USA States Map section for additional geographic information.

    Sources:

    Population and area data sourced from the United States Census Bureau (2020 Census). General county information referenced from the Official Sweetwater County Government Website.

    Facts about Sweetwater County, Wyoming

    CountryUnited States
    StateWyoming
    RegionSouthwestern Wyoming
    County SeatGreen River
    Named AfterSweetwater River
    Established1869
    Organized1869
    Coordinates41.66° N, 108.88° W
    Total Area10,491 sq mi
    Land Area10,426 sq mi
    Water Area65 sq mi
    Population (2020)42,343
    Population RankFourth most populous county in Wyoming
    Largest CityRock Springs
    Main IndustriesEnergy, Mining, Transportation, Manufacturing
    Major HighwaysInterstate 80, U.S. Highway 191, U.S. Highway 30
    Time ZoneMountain Time (UTC−07:00)
    Known ForGreen River Basin, energy resources, Rock Springs
    Official Websitehttps://www.sweetwatercountywy.gov

    Top Attractions in Sweetwater County, Wyoming

    • Fossil Butte National Monument – Fossil exhibits and trails.
    • Sweetwater County Courthouse – Historic courthouse.
    • Historic Downtown Rock Springs – Shops and dining.
    • Flaming Gorge National Recreation Area – Boating and fishing.
    • Red Desert – Scenic landscapes and wildlife.
    • Rural Scenic Roadways – Countryside drives.
    • Community Parks – Picnic and recreation areas.
    • Lincoln Monument – Historic landmark.
    • White Mountain Petroglyphs – Ancient rock carvings.
    • Bridger Valley – Outdoor activities and trails.

    List of Cities and Towns in Sweetwater County, Wyoming

    Rock Springs, Green River, Farson, Granger, Superior, Reliance, Wamsutter