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Jo Daviess County

County in Illinois
Jo Daviess County is the northwesternmost county in the U.S. state of Illinois. According to the 2020 census, it had a population of 22,035. Its county seat is Galena. Jo Daviess County is part of the Tri-State Area and is located near Dubuque,... Wikipedia
County seat: Galena
Population: 21,939 (2021)
Congressional district: 16th
Founded: 1827