Shoshone is the county seat and largest city of Lincoln County, Idaho, United States. The population was 1,653 at the 2020 census. In contr…Shoshone is the county seat and largest city of Lincoln County, Idaho, United States. The population was 1,653 at the 2020 census. In contrast to the Shoshone Native American tribe for which it is named, the city's name is correctly pronounced "Show-shown", with a silent "e".