Market insights · Illinois
Jersey County, IL: growth, migration and housing
Jersey County has 21,160 residents, down 1.6% since 2020 (+0.0% in the last year). In 2022–2023, 470 households moved in and 507 moved out (-37 net), bringing in a net $3.9M of income. Median household income is $80,361, the median home $171,900 and median rent $846 a month.
In Illinois: 39th of 102 counties for 5-year population growth · 53rd of 102 counties for net in-migration (per resident) · 18th of 102 counties for median household income · 27th of 102 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Jersey County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Madison County, IL | 181 | $9.6M |
| Macoupin County, IL | 55 | $3.0M |
| Greene County, IL | 31 | $1.4M |
| St. Louis County, MO | 30 | $2.4M |
Where leavers went
Top counties by households leaving Jersey County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Madison County, IL | 203 | $9.3M |
| Macoupin County, IL | 54 | $2.2M |
| Greene County, IL | 41 | $2.2M |
| St. Louis County, MO | 24 | $1.5M |
BizyFi in Jersey 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.