Mount Vernon, Illinois

city located near the center of Jefferson County, Illinois, United States

Mount Vernon is a city in and the county seat of Jefferson County, Illinois, United States.[1] The population was 14,600 at the 2020 census.[2]

References change

  1. "Find a County". National Association of Counties. Retrieved 2011-06-07.
  2. "Mount Vernon city, Illinois". United States Census Bureau. Retrieved September 20, 2023.