Centralia
Centralia has notably lower household income than the US average, with a median household income of $47,807. Population has fallen 16% since 2000, a loss of 2,280 residents. 16% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $89,600. The poverty rate of 24.3% is well above the national figure. Households here earn about 43% less than the Illinois median.
Population & growth
PEP 2025 EST:11,863 residents (Census Bureau Vintage 2025, released March 2026)
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Education
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People & community
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How many people live in Centralia, Illinois?
Centralia, Illinois has about 11,856 residents according to the 2024 American Community Survey.
What is the median household income in Centralia, Illinois?
The typical household in Centralia, Illinois earns about $47,807 a year. Half of households make more than that, and half make less.
Is Centralia, Illinois expensive?
In Centralia, Illinois, the median home is worth about $89,600, and the typical rent is about $765 a month.
How educated are people in Centralia, Illinois?
About 16.4% of adults age 25 and over in Centralia, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Centralia, Illinois?
About 24.3% of people in Centralia, Illinois live below the federal poverty line.
Has Centralia, Illinois grown since 1990?
Yes, Centralia, Illinois has shrunk since 1990. The population has lost about 2,414 residents, a change of about -17 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024