Washington County, WI Property Tax Rate
Homeowners in Washington County pay an effective 1.20% of home value in property tax — about $3,794 a year on the median $316,200 home, below or near the Wisconsin county median of 1.45%.
Washington County, WI: 1.20% effective property tax — ~$3,794/yr on the median home.
- Effective rate1.20%
- Median home value$316,200
- Median annual bill$3,794
- WI county median1.45%
- U.S. county median0.84%
Source: U.S. Census ACS 2023 5-year (median taxes paid ÷ median value), compiled June 2026.
Washington County vs. Wisconsin and the U.S.
| Effective rate | On the county's $316,200 median home | |
|---|---|---|
| Washington County | 1.20% | $3,794 |
| Wisconsin county median | 1.45% | $4,585 |
| U.S. county median | 0.84% | $2,656 |
Median household income here is $95,851, putting the median tax bill at about 4.0% of income. Effective rates fold in homestead exemptions and assessment practice — they're what owners actually pay, which is why they beat statutory rates for comparison.
Highest & lowest rates in Wisconsin
| County | Effective rate | Median bill |
|---|---|---|
| Menominee County | 3.64% | $3,531 |
| Milwaukee County | 2.04% | $4,417 |
| Dane County | 1.71% | $6,260 |
| Winnebago County | 1.71% | $3,567 |
| Vilas County | 0.80% | $2,166 |
| Sawyer County | 0.85% | $1,898 |
| Oneida County | 0.94% | $2,138 |
| Burnett County | 0.95% | $2,047 |
Full picture: Wisconsin property tax calculator · interactive county atlas · all county pages.
Frequently asked questions
What is the property tax rate in Washington County, WI?
The effective rate is about 1.20% of home value — the median homeowner pays roughly $3,794 a year on a $316,200 median home (ACS 2023 five-year data).
Is Washington County's property tax high?
It's below or near the Wisconsin county median (1.45%) and above the U.S. county median (0.84%).
How is the effective rate calculated?
Median real-estate taxes paid ÷ median home value, from the Census American Community Survey — what owners actually pay, after exemptions, rather than the statutory millage.
Sources & methodology
Sources: Census ACS 2023 5-year tables B25103/B25077.
Effective rate = median real-estate taxes ÷ median home value (owner-occupied). Individual bills vary with exemptions, assessment timing and local levies — verify with the county assessor.