Market insights · Wisconsin
Iowa County, WI: growth, migration and housing
Iowa County has 23,951 residents, up 1.0% since 2020 (-0.1% in the last year). In 2022–2023, 582 households moved in and 582 moved out (0 net), bringing in a net $5.0M of income. Median household income is $82,182, the median home $265,000 and median rent $954 a month.
In Wisconsin: 40th of 72 counties for 5-year population growth · 42nd of 72 counties for net in-migration (per resident) · 13th of 72 counties for median household income · 17th of 72 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Iowa County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Dane County, WI | 192 | $14.9M |
| Grant County, WI | 86 | $3.8M |
| Lafayette County, WI | 36 | $2.4M |
| Richland County, WI | 25 | $0.7M |
| Sauk County, WI | 24 | $1.7M |
Where leavers went
Top counties by households leaving Iowa County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Dane County, WI | 153 | $9.8M |
| Grant County, WI | 85 | $4.4M |
| Lafayette County, WI | 40 | $2.4M |
| Sauk County, WI | 33 | $1.4M |
| Richland County, WI | 29 | $1.6M |
BizyFi in Iowa 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.