Market insights · Illinois
Boone County, IL: growth, migration and housing
Boone County has 53,568 residents, up 0.4% since 2020 (+0.1% in the last year). In 2022–2023, 1,426 households moved in and 1,601 moved out (-175 net), while a net $15.8M of income left. Median household income is $84,571, the median home $216,900 and median rent $1,041 a month.
In Illinois: 14th of 102 counties for 5-year population growth · 78th of 102 counties for net in-migration (per resident) · 13th of 102 counties for median household income · 11th of 102 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Boone County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Winnebago County, IL | 446 | $33.6M |
| Kane County, IL | 154 | $7.6M |
| McHenry County, IL | 151 | $9.1M |
| Cook County, IL | 142 | $8.6M |
| DuPage County, IL | 48 | $3.0M |
| DeKalb County, IL | 44 | $2.1M |
| Lake County, IL | 30 | $1.8M |
| Ogle County, IL | 24 | $1.7M |
Where leavers went
Top counties by households leaving Boone County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Winnebago County, IL | 629 | $30.6M |
| Cook County, IL | 107 | $5.3M |
| McHenry County, IL | 85 | $4.6M |
| Kane County, IL | 56 | $3.5M |
| Rock County, WI | 46 | $2.7M |
| DeKalb County, IL | 36 | $1.5M |
| Dane County, WI | 27 | $2.7M |
| Ogle County, IL | 25 | $2.1M |
BizyFi in Boone 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.