Market insights · Iowa
Madison County, IA: growth, migration and housing
Madison County has 17,270 residents, up 3.8% since 2020 (+0.7% in the last year). In 2022–2023, 444 households moved in and 469 moved out (-25 net), while a net $0.6M of income left. Median household income is $90,855, the median home $245,100 and median rent $1,036 a month.
In Iowa: 5th of 99 counties for 5-year population growth · 43rd of 99 counties for net in-migration (per resident) · 3rd of 99 counties for median household income · 9th of 99 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Madison County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Polk County, IA | 126 | $8.4M |
| Dallas County, IA | 85 | $7.4M |
| Warren County, IA | 57 | $3.2M |
Where leavers went
Top counties by households leaving Madison County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Polk County, IA | 117 | $7.6M |
| Dallas County, IA | 70 | $4.5M |
| Warren County, IA | 51 | $2.9M |
BizyFi in Madison 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.