Of 23 counties in the Equality State, Sweetwater County ranks first in terms of size (7 million acres). Sweetwater County is in the Southwest Wyoming region. There is about 1,000 acres of residential land for sale in Sweetwater County, Wyoming, based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here is roughly $3 million. The average price of residential land for sale in Sweetwater County was $279,980. Browse all residential land and rural property for sale in Wyoming to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.