Mount Vernon, IL
Mount Vernon (Mt. Vernon) is a city located near the center of Jefferson County, Illinois, in the United States. In the 2010 census, the city's reported population was 15,277 people.
Mount Vernon is the principal city of the Mount Vernon Micropolitan Statistical Area, which includes all of Jefferson and Hamilton counties.
Mount Vernon is located at 38°18′49″N 88°54′29″W / 38.313512°N 88.908159°W / 38.313512; -88.908159.