Vienna Flag

Vienna

County:
Johnson County
County Seat:
Yes
Area (mi²):
2.837
State:
Illinois

Vienna is a city located in Johnson County, Illinois. Vienna has a 2026 population of 1,350. It is also the county seat of Johnson County. Vienna is currently declining at a rate of -0.37% annually and its population has decreased by -0.15% since the most recent census, which recorded a population of 1,352 in 2020.

1.4K
Total Population
476
Density (mi²)
-5 -0.37%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)