Market insights · Wisconsin
Lafayette County, WI: growth, migration and housing
Lafayette County has 17,478 residents, up 5.2% since 2020 (+0.8% in the last year). In 2022–2023, 384 households moved in and 376 moved out (+8 net), while a net $1.7M of income left. Median household income is $76,462, the median home $194,500 and median rent $830 a month.
In Wisconsin: 1st of 72 counties for 5-year population growth · 33rd of 72 counties for net in-migration (per resident) · 21st of 72 counties for median household income · 56th of 72 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Lafayette County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Grant County, WI | 108 | $5.9M |
| Green County, WI | 55 | $2.5M |
| Iowa County, WI | 40 | $2.4M |
| Dane County, WI | 38 | $2.2M |
Where leavers went
Top counties by households leaving Lafayette County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Grant County, WI | 88 | $4.7M |
| Green County, WI | 65 | $3.0M |
| Dane County, WI | 44 | $3.6M |
| Iowa County, WI | 36 | $2.4M |
| Dubuque County, IA | 21 | $1.0M |
BizyFi in Lafayette 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.