Lebanon Flag

Lebanon

County Seat:
No
Area (mi²):
2.695
State:
Illinois

Lebanon is a city located in St. Clair County, Illinois. Lebanon has a 2026 population of 4,628. Lebanon is currently declining at a rate of -0.49% annually and its population has decreased by -2.51% since the most recent census, which recorded a population of 4,747 in 2020.

4.6K
Total Population
1,717
Density (mi²)
-23 -0.49%
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)