Market insights · Wisconsin
St. Croix County, WI: growth, migration and housing
St. Croix County has 98,276 residents, up 4.7% since 2020 (+0.6% in the last year). In 2022–2023, 2,730 households moved in and 2,669 moved out (+61 net), bringing in a net $54.7M of income. Median household income is $103,046, the median home $377,700 and median rent $1,271 a month.
In Wisconsin: 4th of 72 counties for 5-year population growth · 29th of 72 counties for net in-migration (per resident) · 2nd of 72 counties for median household income · 4th of 72 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to St. Croix County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Washington County, MN | 470 | $80.6M |
| Pierce County, WI | 350 | $21.3M |
| Ramsey County, MN | 231 | $20.4M |
| Polk County, WI | 198 | $10.8M |
| Hennepin County, MN | 182 | $16.5M |
| Dakota County, MN | 142 | $11.8M |
| Dunn County, WI | 90 | $6.0M |
| Eau Claire County, WI | 61 | $5.0M |
Where leavers went
Top counties by households leaving St. Croix County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Pierce County, WI | 356 | $25.8M |
| Washington County, MN | 279 | $20.8M |
| Ramsey County, MN | 232 | $14.0M |
| Polk County, WI | 202 | $14.1M |
| Hennepin County, MN | 176 | $9.8M |
| Dunn County, WI | 106 | $6.7M |
| Dakota County, MN | 102 | $7.7M |
| Eau Claire County, WI | 69 | $3.3M |
BizyFi in St. Croix 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.