Market insights · Iowa
Benton County, IA: growth, migration and housing
Benton County has 26,004 residents, up 1.8% since 2020 (+0.6% in the last year). In 2022–2023, 621 households moved in and 662 moved out (-41 net), while a net $3.0M of income left. Median household income is $86,962, the median home $208,200 and median rent $826 a month.
In Iowa: 14th of 99 counties for 5-year population growth · 48th of 99 counties for net in-migration (per resident) · 6th of 99 counties for median household income · 21st of 99 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Benton County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Linn County, IA | 302 | $18.0M |
| Iowa County, IA | 35 | $1.9M |
| Johnson County, IA | 34 | $2.0M |
| Black Hawk County, IA | 33 | $1.4M |
Where leavers went
Top counties by households leaving Benton County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Linn County, IA | 263 | $15.0M |
| Black Hawk County, IA | 46 | $2.6M |
| Iowa County, IA | 39 | $1.9M |
| Johnson County, IA | 36 | $1.7M |
| Tama County, IA | 29 | $1.6M |
| Buchanan County, IA | 21 | $1.2M |
BizyFi in Benton 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.