Johnson County Illinois Plat Map

Johnson County is a county in the U.S. state of Illinois. According to the 2020 census, it has a population of 13,308. Its county seat is Vienna. It is located in the southern portion of Illinois known locally as "Little Egypt".
  • Country: United States
  • State: Illinois
  • Founded: 1812
  • Named for: Richard Mentor Johnson
  • Seat: Vienna
  • Largest city: Vienna
  • Congressional district: 12th

Nearby

Data from: en.wikipedia.org