Market insights · Illinois
Gallatin County, IL: growth, migration and housing
Gallatin County has 4,616 residents, down 6.4% since 2020 (-1.4% in the last year). In 2022–2023, 62 households moved in and 56 moved out (+6 net), while a net $0.2M of income left. Median household income is $59,219, the median home $82,900 and median rent $541 a month.
In Illinois: 99th of 102 counties for 5-year population growth · 9th of 102 counties for net in-migration (per resident) · 87th of 102 counties for median household income · 101st of 102 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Gallatin County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Saline County, IL | 23 | $0.9M |
Where leavers went
Top counties by households leaving Gallatin County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Saline County, IL | 22 | $1.5M |
BizyFi in Gallatin 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.