McLean County, Illinois demographics
McLean County, Illinois (county FIPS 17113) has a median household income of $79,905 (±$2,544) and a total population of 171,556 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. 33 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.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 171,556 | none (controlled estimate) | B01003 |
| Median age | 34.3 years | ±0.2 years | B01002 |
| Households | 70,220 | ±669 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $79,905 | ±$2,544 | B19013 |
| Median value of owner-occupied housing units | $208,400 | ±$3,688 | B25077 |
| Median gross rent | $1,009 | ±$30 | B25064 |
| Owner-occupied share of occupied housing units | 65.1% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 34.9% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 95.9% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 47.2% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 12.9% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 3.1% | 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
| Measure | Value |
|---|---|
| County FIPS | 17113 |
| Land area | 1,183.25 sq mi |
| Water area | 3.01 sq mi |
| Population density | 145 per sq mi of land |
| Geography vintage | 2024 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.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 61705 | 7.3% | 100% | Yes |
| 61753 | 6.9% | 100% | Yes |
| 61752 | 6.9% | 94.8% | Yes |
| 61728 | 5.9% | 100% | Yes |
| 61754 | 5.8% | 87.3% | Yes |
| 61745 | 5.2% | 82.3% | Yes |
| 61726 | 5.2% | 64.6% | Yes |
| 61770 | 5.1% | 100% | Yes |
| 61732 | 4.8% | 91.2% | Yes |
| 61722 | 4.4% | 100% | Yes |
| 61744 | 3.9% | 59.5% | Yes |
| 61774 | 3.6% | 100% | Yes |
| 61761 | 3.6% | 100% | Yes |
| 61748 | 3.6% | 96.7% | Yes |
| 61776 | 3.4% | 100% | Yes |
| 61736 | 2.9% | 100% | Yes |
| 61737 | 2.9% | 100% | Yes |
| 61724 | 2.8% | 100% | Yes |
| 61730 | 2.4% | 100% | Yes |
| 61720 | 2.2% | 87.2% | Yes |
| 61772 | 2% | 100% | Yes |
| 61725 | 1.8% | 47.4% | |
| 61842 | 1.7% | 17.9% | |
| 61704 | 1.6% | 100% | Yes |
| 61701 | 0.9% | 100% | Yes |
| 61731 | 0.9% | 46.5% | Yes |
| 60936 | 0.4% | 5.3% | |
| 61723 | 0.4% | 8.1% | |
| 61738 | 0.4% | 6% | |
| 61739 | 0.4% | 4.7% | |
| 61854 | 0.3% | 5.3% | |
| 61843 | 0.2% | 5.6% | |
| 61729 | 0.1% | 6.1% |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:113&in=state:17
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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