Market insights · Wisconsin
Washington County, WI: growth, migration and housing
Washington County has 139,238 residents, up 1.8% since 2020 (+0.4% in the last year). In 2022–2023, 3,327 households moved in and 3,401 moved out (-74 net), bringing in a net $5.3M of income. Median household income is $96,359, the median home $344,800 and median rent $1,153 a month.
In Wisconsin: 26th of 72 counties for 5-year population growth · 47th of 72 counties for net in-migration (per resident) · 4th of 72 counties for median household income · 5th of 72 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Washington County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Milwaukee County, WI | 771 | $54.7M |
| Waukesha County, WI | 709 | $72.1M |
| Ozaukee County, WI | 316 | $22.8M |
| Dodge County, WI | 183 | $10.8M |
| Fond du Lac County, WI | 107 | $5.8M |
| Sheboygan County, WI | 88 | $4.6M |
| Dane County, WI | 71 | $4.7M |
| Winnebago County, WI | 40 | $2.7M |
Where leavers went
Top counties by households leaving Washington County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Waukesha County, WI | 590 | $47.5M |
| Milwaukee County, WI | 581 | $33.9M |
| Ozaukee County, WI | 329 | $26.9M |
| Dodge County, WI | 229 | $13.6M |
| Fond du Lac County, WI | 159 | $10.0M |
| Sheboygan County, WI | 109 | $6.3M |
| Dane County, WI | 102 | $6.5M |
| Winnebago County, WI | 62 | $3.7M |
BizyFi in Washington County
Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Wisconsin companies.
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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.