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Washington County, WI Property Tax Calculator

Washington County homeowners pay a median $3,802 a year in property tax, 1.10% of a median $344,800 home: below Wisconsin's 1.42% but above the national 0.94%.

At an effective rate of 1.10%, a $344,800 home pays about $3,803 a year in property tax, $317 a month.

Property tax a year
$3,803
A month (for escrow)
$317
Effective rate on the home
1.10%

Property tax in Washington County by home value, at 1.10%

Home valueA yearA month
$200,000$2,206$184
$300,000$3,309$276
$400,000$4,412$368
$500,000$5,515$460
$750,000$8,273$689
$1,000,000$11,030$919

Washington County against Wisconsin and the US

Effective rateMedian taxMedian home valueMedian household income
Washington County1.10%$3,802$344,800$96,359
Wisconsin1.42%$3,792$266,500$77,485
United States0.94%$3,119$332,700$80,734

How this calculator works

Median real estate taxes paid ÷ median home value in Washington County, from the Census Bureau's American Community Survey 2020–2024 5-year estimates. The calculator starts at the county's median home value and rate.

What it assumes

  • Cities, school districts and special districts within the county levy different rates, so bills vary within it.
  • Survey figures cover 2020 to 2024 and lag recent reassessments.

Questions people ask

What is the property tax rate in Washington County?

The effective rate is 1.10%: a median $3,802 a year on a median $344,800 home. That's the 28th highest of the 29 Wisconsin counties we cover.

How much is property tax on a $400,000 house in Washington County?

About $4,412 a year, $368 a month, at the county's effective rate, before any exemption.

How does Washington County compare with the rest of Wisconsin?

Its rate is below the state's 1.42%. Across Wisconsin, covered counties range from 1.08% to 1.93%.

How do I lower my Washington County property tax?

Apply for every exemption you qualify for, such as a homestead exemption, and appeal your assessment if it is higher than comparable homes sold nearby; the county assessor explains the deadlines.

Other Wisconsin counties

Related calculators

  • Wisconsin Property Tax CalculatorWisconsin homeowners pay a median $3,792 a year in property tax, 1.42% of a median $266,500 home: the 9th highest effective rate of the 50 states and DC.
  • Wisconsin Mortgage CalculatorYour monthly mortgage payment in Wisconsin, with Wisconsin's effective property tax rate (1.42%) built in, at this week's average rate. The calculator starts at the state's median home value, $266,500.
  • Home Affordability CalculatorThe home price your income supports under the 28/36 guideline lenders use, counting your other debts, down payment, taxes and insurance, at this week's average rate.

Sources

Updated by the RateHerald team. The maths is tested against worked examples; report a problem.