Sweetwater County, county in Wyoming, United States. As of 2020 county had an estimated population of 42,673 inhabitants. The county was created 155 years ago in 1867. Its county seat is "Green River".
There are 1 city/town in Sweetwater County, WY. The largest city of Sweetwater County is Rock Springs with a population of 22,943.
Cities, Towns, Neighborhoods & Other Populated Places in Sweetwater County.
|Rock Springs||City in Sweetwater County, Wyoming, United States||Sweetwater||22,943|