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, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

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%
Native Hawaiian or Pacific Islander	0	0%

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