Sweetwater County in southwestern Wyoming is home to 10,500 square miles of high desert adventure and offers excellent recreation opportunities, affordable housing and a variety of cultural activities. Rock Springs is the largest city in Sweetwater County while the second largest, Green River, is the county seat. Mining is the major industry in Sweetwater County, while coal and oil are also in big supply. The average annual wage throughout the region is $50,000. Sweetwater County has a diverse citizen population, with more than 50 nationalities making up its 32,000 residents.