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Sweetwater County, Wyoming

Sweetwater County
Rock Springs City Hall, 2007
Rock Springs City Hall, 2007
Flag of Sweetwater County
Map of Wyoming highlighting Sweetwater County
Location within the U.S. state of Wyoming
Map of the United States highlighting Wyoming
Wyoming's location within the U.S.
Coordinates: 41°40′N 108°53′W / 41.66°N 108.89°W / 41.66; -108.89
Country United States
State Wyoming
FoundedDecember 17, 1867
Named forSweetwater River
SeatGreen River
Largest cityRock Springs
Area
 • Total10,491 sq mi (27,170 km2)
 • Land10,427 sq mi (27,010 km2)
 • Water64 sq mi (170 km2)  0.6%
Population
 (2020)
 • Total42,272
 • Density4.0/sq mi (1.6/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Area code307
Congressional districtAt-large
Websitewww.sweetwatercountywy.gov

Sweetwater County is a county in southwestern Wyoming, United States.[1] As of the 2020 census, 42,272 people lived there.[2] Its county seat is Green River.[3] Its southern boundary line abuts the north lines of the states of Colorado and Utah.

  1. U.S. Geological Survey Geographic Names Information System: Sweetwater County
  2. "QuickFacts: Sweetwater County, Wyoming". United States Census Bureau. Retrieved January 21, 2024.
  3. "Find a County". National Association of Counties. Retrieved June 7, 2011.

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