Olio Township is located in Woodford County, Illinois. As of the 2010 census, its population was 4,931 and it contained 1,879 housing units. The largest named community in Olio Township is the city of Eureka, the Woodford County seat.

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

How Olio ranks

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#18Highest graduation rate in IL #48Cheapest rent in IL #31Best schools in IL All IL rankings →

Town numbers

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Living in Olio

Work & commute in Olio

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Most working residents leave Olio for work: only 16% work in town. The top destinations are Eureka (18%), Peoria (13%) and Bloomington (8%). Half commute less than 17 miles.

Eureka

18%

Peoria

13%

Bloomington

Normal

16%Work in townlive and work in Olio 17 miWhere do people commute?the commute map 1,613Jobs based herebalanced

Census LEHD 2023 · ACSWork & commute in Olio →

Health in Olio

B⁺

Health Grade B+

Healthier than 67% of U.S. towns on seven CDC estimates, and 94% of towns with similar incomes.

Compared with Illinois

5better than IL·2worse

of 32 measures CDC estimates. The other 25 are too close to call.

Conditions 2▼ 10 close Habits all close Care 1▲ 6 close Mind all close Everyday needs 4▲ 0 close

BetterToo close to callWorse

What stands out

6.3%Fewer uninsured adultsIL 9.9% · better 9%Fewer adults facing housing insecurityIL 13.2% · better 9.7%More adults who have had cancerIL 7.6% · worse

Care nearby

Carle Eureka HospitalEureka · 2.7 mi · ER · rural critical access

Heartland Community Health Clinic Dba: Heartland Health Services - MainEureka · 2.6 mi · sliding-scale fees

Primary careShortage · county-wide

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · ZIP codes 61530, 61771, 61729 · CMS · HRSAHealth in Olio →

Natural hazards in Olio

Moderate

Expected storm and flood damage is higher than in 50% of U.S. communities.

🌊 Inland flooding🥶 Cold waves🌪️ Tornadoes

1Does Olio flood?paid flood claims since 2015 1Disasters that paid out herefederal disaster sent FEMA money to Olio MapOlio vs. its neighborsnearby towns shaded by rating

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

Climate in Olio

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Olio has chilly winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 16°, and about 21 inches of snow falls in a normal winter.

36° / 19°Winter

62° / 40°Spring

84° / 62°Summer

64° / 42°Fall

How much snow does Olio get?About 21 inches a winter.Rain & snow →When is the first frost?Around Oct 17, with the last in spring around Apr 21.Frost dates →Is it warmer than it used to be?+1.5° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Olio →

Schools in Olio

All Olio schools →

School Grade A

The public schools Olio’s kids attend, from kindergarten through graduation, outperform 92% of Illinois’s districts on state tests and graduation. Among towns with similar incomes, they rank near the top.

#31Best public schoolsof 384 in IL

DistrictEureka CUD 140Schools4

Davenport Elem School A-Elementary · Grades PK–4 · 430 students Eureka Middle School AMiddle · Grades 5–8 · 436 students Eureka High School AHigh · Grades 9–12 · 513 students WCSEA Eureka Intensive ECEGrades M

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within IL. Ratings are from neighbors.