Grafton, Ozaukee County, Wisconsin Property Taxes
Median Grafton, WI effective property tax rate: 1.31%, significantly higher than the national median of 1.02%, but lower than the Wisconsin state median of 1.58%.
Median Grafton, WI home value: $314,900
Median annual Grafton, WI tax bill: $3,863, $1,463 higher than the national median property tax bill of $2,400.
How are property taxes in Ozaukee County calculated?
Property taxes in Grafton, WI are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Grafton’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Grafton, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Grafton, Ozaukee County, Wisconsin Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.31%
Estimate Property Tax Bill
$4,125
$3,828
Ownwell’s Grafton Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Grafton with just two data points.
By entering your property's estimated assessed value, our calculator applies Grafton’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a precise calculation for your property tax obligations.
This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Ozaukee County.
For those interested in more localized information, please scroll down to explore city-level trends!
Property Tax Rates Across Grafton, Ozaukee County, Wisconsin
Local government entities set tax rates that can vary widely within a state. Each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate. While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Grafton’s effective property tax rate to other cities in Wisconsin and the median property tax rates in Wisconsin and the U.S. With a median property tax rate of 1.31%, Grafton, located in Ozaukee County, stands above the national median rate of 1.02%. This rate is consistent across the county, reflecting the highest and lowest median tax rates in the area. Compared to the national median property tax bill of $2400, property owners in Grafton may find themselves paying more due to the higher rate. Understanding these figures can help property owners make informed decisions about appealing their property tax assessments or exploring exemptions.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Grafton Taxx Rate
1.31%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Ozaukee County Taxx Rate
1.24%
Median Effective Wisconsin Tax Rate
1.58%
Median Effective United States Tax Rate
0.99%
Property Tax Rates Across Grafton, Ozaukee County, Wisconsin
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
53024 | 0.96% | 1.02% | 1.31% | 1.35% | 1.40% |
Source: Ownwell
Property Tax Assessment Values Across Grafton, Ozaukee County, Wisconsin
When examining property taxes in Grafton, WI, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Ozaukee County appraisal district estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Ozaukee County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Grafton.
For example, the median home price in Grafton is $314,900, with tax bills ranging significantly across the county. Zip code 53024 has the highest median home price at $314,900.
Property Tax Assessment Values Across Grafton, Ozaukee County, Wisconsin
Source: Ownwell

$207,100
$505,950
$804,800
Median Grafton Market Value
$314,900
Median Ozaukee County Market Value
$339,400
Median Wisconsin Market Value
$200,300
Median United States Market Value
$244,900
Property Tax Assessment Values Across Grafton, Ozaukee County, Wisconsin
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
53024 | $196,600 | $246,600 | $314,900 | $429,675 | $556,040 |
Source: Ownwell
Property Tax Bills Across Grafton, Ozaukee County, Wisconsin
Median Grafton Tax Bill
$3,863
Median Ozaukee County Tax Bill
$4,109
Median Wisconsin Tax Bill
$3,346
Median United States Tax Bill
$2,690
Property Tax Bills Across Grafton, Ozaukee County, Wisconsin
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
53024 | $2,465 | $3,026 | $3,863 | $5,301 | $6,686 |
Source: Ownwell