Centralia, IL Profile: Facts & Data

The City of Centralia had a population of 11,668 as of July 1, 2024. Centralia ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Centralia is located at latitude 38.525 and longitude -89.1334 in Marion County. The formal boundaries for the City of Centralia encompass a land area of 8.19 sq. miles and a water area of 1.03 sq. miles. Marion County is in the Central time zone (GMT -6).

While the primary coordinates for City of Centralia are located in Marion County, it should be noted that the formal boundaries for this community also extend into Clinton County, Jefferson County, and Washington County.

The City of Centralia has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Centralia, IL Data & Demographics (As of July 1, 2024)

POPULATION
Total Population	11,668 (100%)
Population in Households	11,301 (96.9%)
Population in Families	8,144 (69.8%)
Population in Group Quarters¹	367 ( 3.1%)
Population Density	1,423
Diversity Index²	44


INCOME
Median Household Income	$51,500
Average Household Income	$66,684
% of Income for Mortgage⁴	11%
Per Capita Income	$29,636
Wealth Index⁵	50
Socioeconomic Status Index⁶	Low (43.7)

HOUSING
Total HU (Housing Units)	5,877 (100%)
Owner Occupied HU	3,324 (56.6%)
Renter Occupied HU	1,851 (31.5%)
Vacant Housing Units	702 (11.9%)
Median Home Value	$92,035
Average Home Value	$119,389
Housing Affordability Index³	199

HOUSEHOLDS
Total Households	5,175
Average Household Size	2.18
Family Households	2,804
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Centralia, IL - Peer Comparisons by Rank and Percentile

The table below compares Centralia to the other 1,462 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2024 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2024	2024-2029
Population	-1.01%	-0.67%
Households	-0.47%	-0.14%
Families		-0.50%
Median Household Income		1.85%
Per Capita Income		2.77%
Owner Occupied HU		0.47%

Variable Description	Rank	Percentile
Total Population	# 199	86th
Population Density	# 438	70th
Median Household Income	# 1296	11th
Housing Affordability Index	# 1262	86th
Per Capita Income	# 1250	15th
Diversity Index	# 351	76th

Centralia, IL Profile: Facts & Data

Centralia, Illinois - Basic Facts

Centralia, IL Data & Demographics (As of July 1, 2024)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Centralia, IL - Peer Comparisons by Rank and Percentile

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