Mount Vernon, Illinois | |
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![]() Town Center of Mount Vernon | |
Nickname(s): The King City, The Festival City | |
Motto(s): Mount Vernon, City of Opportunity[1] | |
![]() Location of Mount Vernon in Jefferson County, Illinois. | |
Coordinates: 38°19′02″N 88°55′02″W / 38.31722°N 88.91722°W[2] | |
Country | United States |
State | Illinois |
County | Jefferson |
Townships | Mount Vernon, Shiloh, Dodds, McClellan |
Founded | 1817 |
Government | |
• Mayor | John Lewis |
Area | |
• Total | 14.66 sq mi (37.97 km2) |
• Land | 14.58 sq mi (37.77 km2) |
• Water | 0.08 sq mi (0.21 km2) |
Elevation | 518 ft (158 m) |
Population (2020) | |
• Total | 14,600 |
• Density | 1,001.17/sq mi (386.56/km2) |
Time zone | UTC−6 (CST) |
• Summer (DST) | UTC−5 (CDT) |
ZIP Code(s) | 62864 |
Area codes | 618 |
FIPS code | 17-51180 |
GNIS feature ID | 2395129[2] |
Public Transit | South Central Transit |
Website | Official website |
Mount Vernon is a city in and the county seat of Jefferson County, Illinois, United States.[4] The population was 14,600 at the 2020 census. Mount Vernon is the principal city of the Mount Vernon Micropolitan Statistical Area, which includes all of Jefferson and Hamilton counties.