Centralia Flag

Centralia

County:
Marion County
County Seat:
No
Area (mi²):
8.2
State:
Illinois

Centralia is a city located in Marion County, Illinois. Centralia has a 2025 population of 11,645. Centralia is currently declining at a rate of -0.86% annually and its population has decreased by -4.17% since the most recent census, which recorded a population of 12,152 in 2020.

The average household income in Centralia is $64,538 with a poverty rate of 22.59%.The median age in Centralia is 40 years: 38.4 years for males, and 41.8 years for females.

11.6K
Total Population
1,420
Density (mi²)
-101 -0.86%
Growth

Centralia Population

Demographics

Economics and Income Statistics

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)