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Jo Daviess County, Illinois
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Jo Daviess County, Illinois Map
An detailed map of Jo Daviess County. Click on a nearby County to view more information about that County.
Map of Townships in Jo Daviess County, Illinois
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Map of Counties in Illinois
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About Jo Daviess County, 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, Iowa and Platteville, Wisconsin. As part of the Driftless Area, Jo Daviess County contains rugged terrain compared to the rest of the state. Within Jo Daviess County lies Charles Mound, the highest natural point in Illinois, as well as eight of the ten highest points in Illinois.
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