Market insights · Illinois
McLean County, IL: growth, migration and housing
McLean County has 171,419 residents, up 0.1% since 2020 (-0.1% in the last year). In 2022–2023, 3,892 households moved in and 4,321 moved out (-429 net), while a net $121.8M of income left. Median household income is $79,905, the median home $208,400 and median rent $1,009 a month.
In Illinois: 18th of 102 counties for 5-year population growth · 67th of 102 counties for net in-migration (per resident) · 19th of 102 counties for median household income · 14th of 102 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to McLean County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Cook County, IL | 338 | $16.6M |
| Tazewell County, IL | 188 | $12.9M |
| Livingston County, IL | 168 | $7.1M |
| Peoria County, IL | 168 | $8.9M |
| Champaign County, IL | 145 | $8.2M |
| Woodford County, IL | 116 | $6.4M |
| Will County, IL | 90 | $5.4M |
| Sangamon County, IL | 88 | $4.9M |
Where leavers went
Top counties by households leaving McLean County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Cook County, IL | 356 | $18.3M |
| Tazewell County, IL | 200 | $11.5M |
| Champaign County, IL | 174 | $9.7M |
| Peoria County, IL | 157 | $8.6M |
| De Witt County, IL | 127 | $7.7M |
| Woodford County, IL | 117 | $8.1M |
| Logan County, IL | 107 | $6.1M |
| Livingston County, IL | 101 | $5.7M |
BizyFi in McLean County
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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.