Centralia is a city in Clinton, Jefferson, Marion, and Washington counties in the U.S. state of Illinois with the largest portion in Marion County. The city is the largest in three counties, Clinton, Marion, and Washington, but it is not a county seat for any of them. The population was 12,182 as of the 2020 census, down from 13,032 in 2010.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

How Centralia ranks

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#52Most affordable in IL #52Lowest property tax in IL #55Most trails in IL All IL rankings →

Town numbers

ZIP code62801

Area code618

Living in Centralia

Housing in Centralia

$113K▲ 6.8% in a year Typical home value · Zillow

The typical Centralia home is worth about $113,000, up 6.8% in a year, 62% below the Illinois typical home.

A strong seller's market

Buyer’sBalancedSeller’s

Days on market47

Sale-to-list88%

Sold in May19

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Centralia

Safety Grade D

Centralia reports more crime per resident than most U.S. towns we grade: about 92% report less.

Violent crime per 1,000

Centralia 9.2

Illinois 2.6

U.S. 3.3

Property crime per 1,000

Centralia 32.3

Illinois 15.6

U.S. 15.5

FBI crime data, 2025 · crimes reported to policeCrime & safety →

Work & commute in Centralia

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About one in 4 of Centralia’s working residents works in town. The top destinations are Mount Vernon (7%), Salem (5%) and Centralia (4%). Half commute less than 17 miles.

Mount Vernon

Salem

Centralia

Nashville

26%Work in townlive and work in Centralia 17 miWhere do people commute?the commute map 5,384Jobs based herebalanced

Census LEHD 2023 · ACSWork & commute in Centralia →

Health in Centralia

Health Grade D

Healthier than 12% of U.S. towns on seven CDC estimates, and 36% of towns with similar incomes.

Compared with Illinois

1better than IL·21worse

of 32 measures CDC estimates. The other 10 are too close to call.

Conditions 11▼ 1 close Habits 2▼ 2 close Care 1▲ 2▼ 4 close Mind 3▼ 2 close Everyday needs 3▼ 1 close

BetterToo close to callWorse

What stands out

79%More adults treating high blood pressureIL 75.7% · better 19.1%More older adults who have lost all their teethIL 10.3% · worse

Care nearby

Ssm Health St. Mary's Hospital -CentraliaCentralia · 0.6 mi · ER

Sihf Healthcare - SalemSalem · 12 mi · sliding-scale fees

Primary careShortage · county-wide

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Centralia · CMS · HRSAHealth in Centralia →

Natural hazards in Centralia

High

Expected storm and flood damage is higher than in 71% of U.S. communities.

🏚️ Earthquakes🌊 Inland flooding🌪️ Tornadoes

6Does Centralia flood?paid flood claims since 1979 2Disasters that paid out herefederal disasters sent FEMA money to Centralia MapCentralia vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Centralia →

Climate in Centralia

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Centralia has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 23°, and about 7 inches of snow falls in a normal winter.

42° / 25°Winter

65° / 44°Spring

86° / 65°Summer

68° / 46°Fall