McLean County, IL Demographics
McLean County, IL is the 13th most populous of 102 counties in Illinois, with 170,954 residents across 1,183 square miles. That is about 144 people per square mile.
At the 2020 census
| Population | 170,954 |
|---|---|
| Land area | 1,183 sq mi |
| Density | 144 / sq mi |
Data: 2020 Census · American Community Survey 2024
How McLean County compares to the US
We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: McLean County, IL
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around McLean County, IL — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in McLean County, IL
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 51.02 | 7,385 | 160.8 | 46 |
| Census Tract 54.01 | 7,291 | 69.0 | 106 |
| Census Tract 1.08 | 6,024 | 4.0 | 1,499 |
| Census Tract 1.09 | 6,001 | 2.0 | 3,013 |
| Census Tract 3.02 | 5,585 | 3.3 | 1,671 |
| Census Tract 2 | 5,446 | 0.4 | 13,574 |
| Census Tract 21.01 | 5,052 | 4.0 | 1,248 |
| Census Tract 5.04 | 5,046 | 2.2 | 2,312 |
| Census Tract 51.03 | 4,985 | 3.2 | 1,564 |
| Census Tract 57 | 4,981 | 171.9 | 29 |
| Census Tract 11.05 | 4,744 | 0.9 | 5,248 |
| Census Tract 11.08 | 4,656 | 6.5 | 715 |
| Census Tract 51.04 | 4,600 | 3.2 | 1,459 |
| Census Tract 14.04 | 4,349 | 1.8 | 2,454 |
| Census Tract 3.01 | 4,221 | 0.8 | 5,210 |
| Census Tract 58 | 4,210 | 1.3 | 3,163 |
| Census Tract 59 | 4,100 | 1.3 | 3,140 |
| Census Tract 14.03 | 3,981 | 1.8 | 2,245 |
| Census Tract 1.07 | 3,931 | 0.8 | 5,228 |
| Census Tract 1.05 | 3,931 | 15.9 | 247 |
| Census Tract 11.07 | 3,824 | 0.8 | 4,654 |
| Census Tract 14.02 | 3,786 | 3.0 | 1,247 |
| Census Tract 5.06 | 3,752 | 0.9 | 4,001 |
| Census Tract 54.02 | 3,708 | 67.3 | 55 |
| Census Tract 60 | 3,694 | 168.5 | 22 |
| Census Tract 11.03 | 3,249 | 1.6 | 2,070 |
| Census Tract 11.06 | 3,142 | 0.6 | 5,287 |
| Census Tract 52.02 | 3,113 | 85.0 | 37 |
| Census Tract 18 | 3,085 | 1.3 | 2,345 |
| Census Tract 4 | 2,789 | 0.5 | 6,122 |
| Census Tract 5.07 | 2,779 | 1.6 | 1,720 |
| Census Tract 1.06 | 2,568 | 0.4 | 6,734 |
| Census Tract 5.01 | 2,523 | 0.6 | 4,324 |
| Census Tract 16 | 2,425 | 0.4 | 5,503 |
| Census Tract 55.02 | 2,420 | 128.9 | 19 |
| Census Tract 5.02 | 2,413 | 0.6 | 4,136 |
| Census Tract 12 | 2,395 | 1.0 | 2,316 |
| Census Tract 55.01 | 2,353 | 17.6 | 134 |
| Census Tract 15 | 2,268 | 0.3 | 6,625 |
| Census Tract 17 | 2,179 | 0.4 | 6,223 |
| Census Tract 13.02 | 2,077 | 0.3 | 7,391 |
| Census Tract 56.02 | 2,037 | 132.5 | 15 |
| Census Tract 13.01 | 1,809 | 0.4 | 4,753 |
| Census Tract 56.01 | 1,782 | 87.9 | 20 |
| Census Tract 21.02 | 1,542 | 13.0 | 118 |
| Census Tract 13.03 | 1,526 | 0.3 | 5,282 |
| Census Tract 52.01 | 1,197 | 12.4 | 96 |
Related places
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Metro areas containing McLean County
About this page
This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.
Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.