Population density (sq mi)1,54822891
Median age41.037.437.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)54%55%55%
Families w/ Kids under 1845%44%43%
Speak English96%77%79%
Speak Spanish3%13%13%

Key findings

  • The population density in Centralia is 579% higher than Illinois
  • The median age in Centralia is 10% higher than Illinois
  • In Centralia 83.71% of the population is White
  • In Centralia 9.63% of the population is Black
  • In Centralia 0.99% of the population is Asian

Compare Centralia, IL Demographics


      Centralia population breakdown by race

      American Indian0.19%0.23%0.82%
      Native Hawaiian0.00%0.03%0.18%
      Mixed race4.43%2.34%3.06%
      Other race1.04%5.86%4.75%
      In Centralia, 2.9% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      Centralia age breakdown

      Marital status

      Age of children in married couples

      Source: The Centralia, IL demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).