Market insights · Illinois
Hamilton County, IL: growth, migration and housing
Hamilton County has 7,859 residents, down 1.7% since 2020 (-0.0% in the last year). In 2022–2023, 123 households moved in and 171 moved out (-48 net), while a net $1.4M of income left. Median household income is $65,746, the median home $113,700 and median rent $568 a month.
In Illinois: 44th of 102 counties for 5-year population growth · 98th of 102 counties for net in-migration (per resident) · 60th of 102 counties for median household income · 72nd of 102 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Hamilton County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Franklin County, IL | 25 | $0.9M |
| Jefferson County, IL | 25 | $0.9M |
| White County, IL | 21 | $1.0M |
Where leavers went
Top counties by households leaving Hamilton County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Jefferson County, IL | 24 | $1.2M |
| White County, IL | 22 | $0.7M |
| Franklin County, IL | 20 | $0.9M |
BizyFi in Hamilton 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.
← All Illinois counties · National rankings
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.