County demographics · Illinois

DuPage County, Illinois demographics

DuPage County, Illinois (county FIPS 17043) has a median household income of $112,096 (±$1,607) and a total population of 930,024 in the American Community Survey 5-year estimates for 2020-2024.

Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 43 ZIP Code Tabulation Areas overlap the county (Census 2020).

Data as of Oct 22, 2026 (Olympus publication) · Markdown version

  • Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
  • ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.

ACS 5-year estimates, 2020-2024

Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.

MetricEstimateMargin of error (90%)ACS table
Total population930,024none (controlled estimate)B01003
Median age40.2 years±0.2 yearsB01002
Households350,758±1,140B11001
Median household income (inflation-adjusted to the final ACS year)$112,096±$1,607B19013
Median value of owner-occupied housing units$391,400±$2,511B25077
Median gross rent$1,688±$16B25064
Owner-occupied share of occupied housing units73.1%none (derived from several estimates)B25003 (derived)
Renter-occupied share of occupied housing units26.9%none (derived from several estimates)B25003 (derived)
High school graduate or higher (age 25+)93%none (derived from several estimates)B15003 (derived)
Bachelor's degree or higher (age 25+)51.8%none (derived from several estimates)B15003 (derived)
Share of people below the poverty level6.6%none (derived from several estimates)B17001 (derived)
Unemployment rate (civilian labor force)4.9%none (derived from several estimates)B23025 (derived)
  • Dollar values are in 2024 inflation-adjusted dollars.
  • Percentages' margins of error are in percentage points (pp).

Geography

MeasureValue
County FIPS17043
Land area327.85 sq mi
Water area8.54 sq mi
Population density2,837 per sq mi of land
Geography vintage2024 Gazetteer

ZIP codes (ZCTAs) in this county

ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.

ZCTAShare of county landShare of ZCTA landCounty is the ZCTA's primary county
601859.1%96.4%Yes
605634.4%100%Yes
601484.2%100%Yes
605404%100%Yes
601033.7%65.6%Yes
605153.6%100%Yes
605273.5%79.3%Yes
601013.5%100%Yes
601373.3%100%Yes
601263.3%97.3%Yes
601893.2%100%Yes
601883.1%100%Yes
601062.8%100%Yes
605232.7%99.8%Yes
605322.6%100%Yes
605172.6%90.5%Yes
605652.5%63.2%Yes
605552.5%100%Yes
605162.3%100%Yes
601082.3%100%Yes
604392.2%24.1%
605042.1%79.6%Yes
601432.1%100%Yes
605612%100%Yes
601872%100%Yes
605022%59.3%Yes
601812%100%Yes
601721.8%82.6%Yes
601391.7%100%Yes
601841.7%64.4%Yes
601331.6%64.1%Yes
601911.6%100%Yes
601901.5%100%Yes
605591.4%100%Yes
605101.2%16.5%
605641.2%24.7%
605211.2%82.8%Yes
605140.6%100%Yes
601570.5%100%Yes
600070.2%4%
604400.1%1.9%
601740.1%1.3%
605190%100%Yes

Sources

Get this data from the API

The same figures, with provenance on every value, from the API (free API key, reference) or from an AI agent through the Olympus MCP server.

curl
curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/17043" -H "X-API-Key: $OLYMPUS_API_KEY"
MCP tool call
get_us_demographics {"county_fips":"17043"}

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