Vienna, Illinois

Vienna
Location of Vienna in Johnson County, Illinois.
Location of Illinois in the United States
Coordinates: 37°24′58″N 88°53′39″W / 37.41611°N 88.89417°W / 37.41611; -88.89417
CountryUnited States
StateIllinois
CountyJohnson
Government
  MayorSteve Penrod
Area
  Total
2.87 sq mi (7.44 km2)
  Land2.84 sq mi (7.35 km2)
  Water0.04 sq mi (0.10 km2)
Elevation
364 ft (111 m)
Population
 (2020)
  Total
1,343
  Density473.39/sq mi (182.80/km2)
Time zoneUTC-6 (CST)
  Summer (DST)UTC-5 (CDT)
ZIP Code(s)
62995
Area code(s)618/730
FIPS code17-77863
GNIS feature ID2397137
Wikimedia CommonsVienna, Illinois
Websitewww.cityofviennail.net

Vienna (/vˈænə/ vy-AN) is a city in and the county seat of Johnson County, Illinois, United States, and it is the site of two well-known state penitentiaries. The population of Vienna was 1,343 at the 2020 census.