Jefferson County, Illinois
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Jefferson County is a county located in the southern part of the U.S. state of Illinois. According to the 2020 census, it has a population of 37,113. The county seat is Mount Vernon. Jefferson County
Jefferson County Courthouse in Mount Vernon
Southern Illinoismapsmall
Mount Vernon, Illinois
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Mount Vernon is a city in Jefferson County, Illinois, United States, and its county seat. The population was 14,600 at the 2020 census. Mount Vernon is the principal city of the Mount Vernon, Illinois
Jefferson County, Illinois
…a county located in the southern part of the U.S. state of Illinois. According to the 2020 census, it has a population of 37,113. The county seat is Mount Vernon. Jefferson County also constitutes the Mount Vernon micropolitan area, anchored by the city of Mount Vernon. It is located in the southern portion known…
Town Center of Mount Vernon
City Hall
5th District Appellate Court