Market insights · Illinois
McDonough County, IL: growth, migration and housing
McDonough County has 25,916 residents, down 4.5% since 2020 (-0.8% in the last year). In 2022–2023, 670 households moved in and 733 moved out (-63 net), while a net $2.6M of income left. Median household income is $52,795, the median home $107,500 and median rent $761 a month.
In Illinois: 93rd of 102 counties for 5-year population growth · 66th of 102 counties for net in-migration (per resident) · 99th of 102 counties for median household income · 80th of 102 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to McDonough County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Fulton County, IL | 85 | $4.0M |
| Hancock County, IL | 58 | $2.3M |
| Cook County, IL | 47 | $1.1M |
| Warren County, IL | 29 | $1.1M |
| Schuyler County, IL | 26 | $1.6M |
Where leavers went
Top counties by households leaving McDonough County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Cook County, IL | 59 | $2.1M |
| Fulton County, IL | 41 | $1.3M |
| Hancock County, IL | 40 | $1.7M |
| Peoria County, IL | 25 | $0.6M |
| Knox County, IL | 24 | $0.8M |
| Sangamon County, IL | 22 | $1.0M |
BizyFi in McDonough 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.