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Oak Brook, Illinois

Village in DuPage County, Illinois · ZIP 60523

  • DuPage County
  • Within York Township
  • Census data · ACS 2019-2023
  • 3 public schools
Join Oak BrookAsk Oak BrookBusinessesPeople
  • 8,188 (2024 estimate)Population
  • 2,863Households
  • $171,123Median household income
  • $867,900Median home value
  • 3Public schools
  • 1ZIP codes

About Oak Brook

This page shows only what has been published about Oak Brook: 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 2020−6.2%
7.5k8k8.5k9k2000: 8,70220002010: 7,88320102020: 8,16320208,7028,163
Population of Oak Brook at each census
CensusPopulation
20008,702
20107,883
20208,163

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 Oak Brook
Under $50k15.3%
$50k to $100k16%
$100k to $150k10%
$150k to $200k15.7%
$200k and over43.1%

Median household income $171,123 · 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 Oak Brook
Owner occupied
2,682 units
Renter occupied
181 units
Vacancy rate
9.1%

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.

Oak Brook compared with its county and state
Oak Brook compared with its county and state, American Community Survey 2019-2023
MeasureOak BrookDuPage CountyIllinois
Population8,028927,26312,692,653
Median household income$171,123$110,502$81,702
Median age51.740.038.9
Median home value$867,900$374,100$250,500
Bachelor’s degree or higher67.1%51.4%37.2%
Foreign-born residents27.8%20.2%14.4%
Owner-occupied homes93.7%73.1%66.8%
Mean commute to work32.4 minutes28.0 minutes28.1 minutes

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

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Schools

Public schools in Oak Brook3
Public schools in Oak Brook, NCES directory 2023–2024
SchoolTypeGradesDistrict
Oak Brook Park DistrictPublicPre-KButler SD 53
Brook Forest Elem SchoolPublicK–5Butler SD 53
Butler Junior High SchoolPublic6–8Butler SD 53

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 Oak BrookPromoted from questions people asked

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Nearby towns

Other towns in DuPage County

All towns in DuPage County