Market insights · Illinois
Brown County, IL: growth, migration and housing
Brown County has 6,401 residents, up 2.7% since 2020 (-0.6% in the last year). In 2022–2023, 91 households moved in and 87 moved out (+4 net), bringing in a net $0.6M of income. Median household income is $67,917, the median home $150,300 and median rent $698 a month.
In Illinois: 3rd of 102 counties for 5-year population growth · 12th of 102 counties for net in-migration (per resident) · 47th of 102 counties for median household income · 40th of 102 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Brown County, 2022–2023 (IRS).
The IRS publishes no county-level flows for Brown County (it suppresses flows of fewer than 20 households).
Where leavers went
Top counties by households leaving Brown County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Adams County, IL | 32 | $1.5M |
BizyFi in Brown County
No companies in the BizyFi directory are based here yet. Search them on the company map (company names with a free account), or browse Illinois companies.
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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.