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.

Demographics

The racial composition of Centralia includes 82.3% White, 9.67% Black or African American, and smaller percentages for other race, Asian, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	9,883	82.3%
Black or African American	1,161	9.67%
Two or more races	552	4.6%
Other race	218	1.82%
Asian	194	1.62%
Native American	1	0.01%

Centralia Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Centralia's average per capita income is $40,127. Household income levels show a median of $47,308. The poverty rate stands at 22.59%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$86,667	-
Families	$73,861	$86,722
Households	$47,308	$64,538
Non Families	$31,702	$38,928

$40,127

Average Income

$47,308

Median Household Income

22.59%

Poverty Rate