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Eureka, Illinois

City in Woodford County, Illinois · ZIP 61530

  • Woodford County
  • Within Olio Township
  • Census data · ACS 2019-2023
  • 4 public schools
Join EurekaAsk EurekaBusinessesPeople
  • 5,189 (2024 estimate)Population
  • 2,148Households
  • $55,172Median household income
  • $154,600Median home value
  • 4Public schools
  • 1ZIP codes

About Eureka

This page shows only what has been published about Eureka: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020+7.3%
4.8k5k5.2k5.4k2000: 4,87120002010: 5,29520102020: 5,22720204,8715,227
Population of Eureka at each census
CensusPopulation
20004,871
20105,295
20205,227

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 17, retrieved November 14, 2026.

Household income in Eureka
Under $50k47.8%
$50k to $100k26%
$100k to $150k15.3%
$150k to $200k5.4%
$200k and over5.5%

Median household income $55,172 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 17, retrieved November 14, 2026.

Housing tenure in Eureka
Owner occupied
1,431 units
Renter occupied
717 units
Vacancy rate
6.8%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

Eureka compared with its county and state
Eureka compared with its county and state, American Community Survey 2019-2023
MeasureEurekaWoodford CountyIllinois
Population5,09538,34812,692,653
Median household income$55,172$85,629$81,702
Median age40.740.538.9
Median home value$154,600$193,800$250,500
Bachelor’s degree or higher31.9%36.1%37.2%
Foreign-born residents0.7%1.5%14.4%
Owner-occupied homes66.6%83.5%66.8%
Mean commute to work28.2 minutes24.3 minutes28.1 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

CommunityRules and moderation

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Schools

Public schools in Eureka4
Public schools in Eureka, NCES directory 2023–2024
SchoolTypeGradesDistrict
Davenport Elem SchoolPublicPre-K–4Eureka CUD 140
Eureka Middle SchoolPublic5–8Eureka CUD 140
Eureka High SchoolPublic9–12Eureka CUD 140
WCSEA Eureka Intensive ECESpecial educationMWoodford Cty Special Ed Assoc

Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.

Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.

Frequently asked about EurekaPromoted from questions people asked

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Nearby towns

Other towns in Woodford County

All towns in Woodford County