Centralia, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Centralia, Illinois is 12,009 as of the 2023 American Community Survey, making it the 198th-largest city in Illinois. The median household income is $47,308, the median home value is $81,600, and the median age is 40.0.
The population has declined 9.5% since 2010 (13,021 → 11,787).
12,009
Population
1465
People / sq mi
$47,308
Median Income
$81,600
Median Home Value
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Centralia covers 8.2 sq mi of land at 1465 people per square mile.
About Centralia, IL
Housing cost is the defining feature of Centralia: the median home is valued at $81,600. With 12,009 residents, Centralia is a city in Illinois.
Money is tight relative to the rest of US cities: the median household earns just $47,308, below the US median of $78,538. The poverty rate is 14.6%, above the national 12.4%. Home prices sit near the bottom of the range at $81,600, with typical rent around $775.
College attainment is 17.8%, below the national 35.0%. Most workers commute: only 6.7% work from home, below the national 14.0%, and the average commute runs about 20 minutes each way.
Centralia city Population History (2010-2024)
The city of Centralia city had a population of 13,021 in 2010 and 11,787 in 2024, a -9.5% growth over 14 years. The peak was 13,021 in 2010. Average annual growth rate: -0.71%.
11,787
Population (2024)
13,021
Population (2010)
13,021
Peak (2010)
-0.71%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 13,021 |
| 2011 | 12,941 |
| 2012 | 12,854 |
| 2013 | 12,750 |
| 2014 | 12,676 |
| 2015 | 12,587 |
| 2016 | 12,476 |
| 2017 | 12,372 |
| 2018 | 12,272 |
| 2019 | 12,210 |
| 2020 | 12,144 |
| 2021 | 12,064 |
| 2022 | 11,919 |
| 2023 | 11,838 |
| 2024 | 11,787 |
Race & Ethnicity
| White | 82.3% |
| Black or African American | 9.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.5% |
| Two or More Races | 0.0% |
Economy & Income
$47,308
Median Household Income
$28,698
Per Capita Income
14.6%
Poverty Rate
5.8%
Unemployment Rate
Housing
$81,600
Median Home Value
$775
Median Rent
64.2%
Owner-Occupied
Education
89.0%
High School+
17.8%
Bachelor's+
Commute
0.2%
Drive Alone
79.2%
Public Transit
6.7%
Work From Home
19.5 min
Avg Commute
Community Profile
19.4%
Foreign Born
95.5%
Non-English at Home
8.0%
Veterans
21.3%
With Disability
93.6%
Health Insurance
89.0%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 29.3% |
| Manufacturing | 16.4% |
| Education, Health Care & Social Services | 8.8% |
| Retail Trade | 7.6% |
| Arts, Entertainment & Food Services | 5.7% |
| Public Administration | 5.1% |
| Information | 4.2% |
| Construction | 4.1% |
| Transportation & Warehousing | 4.0% |
| Finance, Insurance & Real Estate | 2.4% |
| Agriculture & Mining | 0.5% |
Largest cities in Illinois
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Frequently Asked Questions
Centralia, Illinois has a population of 12,009 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 198th-largest city in Illinois.
The median household income in Centralia, Illinois is $47,308, with 14.6% of residents living below the federal poverty level.
The median home value in Centralia, Illinois is $81,600, with median monthly rent at $775 and a homeownership rate of 64.2%.
The median age in Centralia, Illinois is 40.0 years. The population is 48.3% male and 51.7% female.
The population has declined 9.5% since 2010 (13,021 → 11,787).
Where to stay in Centralia
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.