Custer, Marathon County, Wisconsin Property Taxes

$774 avg. annual savings

No Upfront Costs

You only pay if we save

Property Taxes in Custer, Wisconsin

Median Custer, Wisconsin effective property tax rate: 1.33%, significantly lower than the national median of 1.02%, and lower than the Wisconsin state median of 1.43%.
Median Custer, Wisconsin home value: $51,039
Median annual Custer, Wisconsin tax bill: $585, lower than the national median property tax bill of $2,400.

How are property taxes in Marathon calculated?

Property taxes in Custer, Wisconsin 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 Custer's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Custer, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Custer, Marathon County, Wisconsin Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.33%

Estimate Property Tax Bill

$679

$630

How Does the Custer Property Tax Calculator Work?

Use this Custer property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Custer's median effective tax rate of 1.33% — based on actual property records in Marathon County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessor uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Custer's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Custer: rates range from 1.33% in 54423 to 1.33% in 54423, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Custer.

About Custer Property Taxes

About Property Taxes in Custer, Marathon, Wisconsin

Custer’s median effective property tax rate of 1.33% is lower than the Wisconsin state median of 1.43% and higher than the national median of 1.02%. This rate reflects the Marathon County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Custer. Homeowners in the highest ZIP code carry a median effective rate of 1.33%, while those in the lowest pay 1.33%. This spread reflects how school district boundaries and local assessment districts are drawn across Marathon County. Understanding which part of Custer you live in can make a meaningful difference to your annual tax bill.

Custer homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before May 25, 2026.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Custer, Marathon County, Wisconsin

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, 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 Custer's effective property tax rate to other cities in Wisconsin and the median property tax rates in Wisconsin and the U.S.

Property Tax Rates Across Custer, Marathon County, Wisconsin

Source: Ownwell

1.04%

1.55%

2.05%

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 Custer Tax Rate

1.33%

Median Effective Marathon County Tax Rate

1.56%

Median Effective Wisconsin Tax Rate

1.43%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Custer, Marathon County, Wisconsin

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
54423	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Assessment Values Across Custer, Marathon County, Wisconsin

When examining property taxes in Custer, Wisconsin, 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 Marathon County assessor 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 Marathon County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.

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 Custer.

For example, the median home price in Custer is $51,039, with tax bills ranging significantly across the county. The median tax bill is $585, compared with the national median property tax bill of $2,400 and national median property tax rate of 1.02%.

Property Tax Assessment Values Across Custer, Marathon County, Wisconsin

Source: Ownwell

$10,707

$128,318

$245,929

Median Custer Market Value

$51,039

Median Marathon County Market Value

$99,921

Median Wisconsin Market Value

$237,700

Median United States Market Value

$235,294

Property Tax Assessment Values Across Custer, Marathon County, Wisconsin

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
54423	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Bills Across Custer, Marathon County, Wisconsin

Property tax bills in Custer are calculated by applying the local property tax rate to a home’s assessed value, which is based on the market value determined by local assessors. The assessed value is then adjusted by any exemptions or special classifications that may apply, and the resulting taxable value is used to determine the final bill. For homeowners, this means that two homes with similar market values can still have different tax bills if their assessments or exemptions differ.

In Custer, the median home price is $51,039, and property tax bills vary widely across homeowners. The 25th percentile tax bill is $540, while the 75th percentile is $1,976 and the 90th percentile reaches $2,810. Compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400, local bills can still feel significant relative to home values. Understanding how the bill is calculated helps homeowners see why their taxes may rise or fall over time.

Property Tax Bills Across Custer, Marathon County, Wisconsin

Source: Ownwell

$158

$1,820

$3,482

Median Custer Tax Bill

$585

Median Marathon County Tax Bill

$1,755

Median Wisconsin Tax Bill

$3,453

Median United States Tax Bill

$2,400

Property Tax Bills Across Custer, Marathon County, Wisconsin

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
54423	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	April 27

Links
Marathon Tax Assessor
Website	ascent.co.marathon.wi.us

Frequently Asked Property Tax Questions in Custer, Wisconsin

How are property taxes calculated in Custer, Wisconsin?

Property taxes in Custer, Wisconsin are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Custer, Wisconsin?

To appeal your property taxes in Custer, Wisconsin, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Custer, Wisconsin?

Common property tax exemptions in Custer, Wisconsin include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Custer, Wisconsin?

Property tax deadlines in Custer, Wisconsin vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Custer, Wisconsin?

Ownwell provides professional property tax appeal services in Custer, Wisconsin. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.