Iowa County, Wisconsin Property Taxes
Property Taxes in Iowa County, Wisconsin
Median Iowa County effective property tax rate: 1.75%, significantly higher than the national median of 1.02%.
Median Iowa County home value: $201,064
Median annual Iowa County tax bill: $3,467, $1,067 higher than the national median property tax bill of $2,400.
How are property taxes in Iowa County calculated?
Property taxes in Iowa County 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 your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Iowa County or another part of Iowa County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Iowa County, Wisconsin Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.75%
Estimate Property Tax Bill
$3,519
$3,265
How Does the Iowa County Property Tax Calculator Work?
Use this Iowa County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Iowa County's median effective tax rate of 1.75% to generate your estimate.
Enter your property's estimated assessed value — the figure the assessor assigns for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.
Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Iowa County's median effective tax rate is higher than the Wisconsin median tax rate of 1.43%, and the median tax bill of $3,467 is higher than the national median property tax bill of $2,400.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Iowa County.
Property Tax Rates Across Iowa County, Wisconsin
What Are Effective Property Tax Rates Across Iowa County?
Local government entities set tax rates, which vary widely across Iowa County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Iowa County's effective property tax rate to other counties in Wisconsin or the U.S. median of 1.02%.
Iowa County's median effective rate stands at 1.75%, which is higher than the national median of 1.02%. Within Iowa County, the highest rate is found in Arena at 1.91%, while Spring Green has the lowest at 1.41%.
These variations reflect differences in local school district levies, special assessment districts assessments, and special district bonds — which compound the base county rate.
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 Iowa County Tax Rate
1.75%
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 Wisconsin Tax Rate
1.43%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Iowa County, Wisconsin
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Arena | 1.87% | 1.89% | 1.91% | 1.93% | 1.96% |
| Dodgeville | 1.69% | 1.72% | 1.74% | 1.76% | 1.85% |
| Mineral Point | 1.68% | 1.70% | 1.70% | 1.72% | 1.78% |
| Spring Green | 1.29% | 1.29% | 1.41% | 1.41% | 1.41% |
| Avoca | N/A | N/A | N/A | N/A | N/A |
| Barneveld | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Iowa County, Wisconsin
When examining property taxes in Iowa County, 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 Iowa County assessment office 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 Iowa 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 Iowa County.
For example, the median tax bill in Iowa County is $3,467, compared with the national median property tax bill of $2,400. Mineral Point has the highest median home price at $253,675.
Median Iowa County Market Value
$201,064
Median Wisconsin Market Value
$237,700
Median United States Market Value
$235,294
Property Tax Assessment Values Across Iowa County, Wisconsin
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Arena | $158,683 | $168,424 | $191,924 | $200,901 | $221,027 |
| Dodgeville | $138,298 | $170,213 | $200,532 | $223,405 | $238,724 |
| Mineral Point | $137,811 | $245,201 | $253,675 | $270,957 | $298,094 |
| Spring Green | $212,316 | $215,900 | $215,900 | $215,900 | $215,900 |
| Avoca | N/A | N/A | N/A | N/A | N/A |
| Barneveld | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Iowa County, Wisconsin
Property tax bills in Iowa County, Wisconsin are based on the assessed value of a home and the local tax rate set by taxing authorities. When a property’s market value changes, the assessed value can shift as well, which affects the final bill. Local budgets for schools, county services, and other public needs also play a role in determining how much homeowners owe.
With a median home price of $201,064, property tax bills in the county can vary widely. The 25th percentile bill is $2,935, while the 75th percentile reaches $3,968. At the higher end, the 90th percentile bill is $4,256. That is above the national median property tax bill of $2,400, showing that many homeowners in Iowa County face a heavier tax burden than the typical U.S. homeowner.
These taxes directly affect monthly housing costs and long-term affordability, making it important for homeowners to understand how their bill is calculated.
Median Iowa County Tax Bill
$3,467
Median Wisconsin Tax Bill
$3,453
Median United States Tax Bill
$2,400
Property Tax Bills Across Iowa County, Wisconsin
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Arena | $2,969 | $3,236 | $3,705 | $3,947 | $4,268 |
| Dodgeville | $2,494 | $2,955 | $3,487 | $3,915 | $4,188 |
| Mineral Point | $2,427 | $4,167 | $4,404 | $4,621 | $5,119 |
| Spring Green | $2,791 | $2,791 | $3,026 | $3,055 | $3,055 |
| Avoca | N/A | N/A | N/A | N/A | N/A |
| Barneveld | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | May 1 |
Links | |
|---|---|
| Iowa Tax Assessor | |
| Website | iowa.transcendenttech.com |