Grant County, Wisconsin Property Taxes
Property Taxes in Grant County, Wisconsin
Median Grant County effective property tax rate: 1.35%, significantly higher than the national median of 1.02%.
Median Grant County home value: $175,400
Median annual Grant County tax bill: $2,384, lower than the national median property tax bill of $2,400.
How are property taxes in Grant County calculated?
Property taxes in Grant 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 Grant County or another part of the county, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Grant County, Wisconsin Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.35%
Estimate Property Tax Bill
$2,368
$2,197
How Does the Grant County Property Tax Calculator Work?
Use this Grant County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Grant County's median effective tax rate of 1.35% to generate your estimate.
Enter your property's estimated assessed value — the figure used 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. Grant County's median tax rate is higher than Wisconsin's 1.43%?
Property Tax Rates Across Grant County, Wisconsin
What Are Effective Property Tax Rates Across Grant County?
Local government entities set tax rates, which vary widely across Grant 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 Grant County's effective property tax rate to other counties in Wisconsin or the U.S. median of 1.02%.
Grant County's median effective rate stands at 1.35%, which is higher than the national median of 1.02%. Within Grant County, the highest rate is found in Boscobel at 1.66%, while Patch Grove has the lowest at 0.84%.
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 Grant County Tax Rate
1.35%
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 Grant County, Wisconsin
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Bagley | 0.76% | 0.86% | 1.01% | 1.17% | 1.35% |
| Beetown | 0.59% | 0.85% | 0.94% | 0.97% | 1.00% |
| Bloomington | 1.00% | 1.16% | 1.27% | 1.35% | 1.40% |
| Blue River | 0.93% | 1.03% | 1.25% | 1.34% | 1.39% |
| Boscobel | 1.02% | 1.29% | 1.66% | 1.76% | 1.82% |
| Cassville | 1.09% | 1.26% | 1.40% | 1.52% | 1.63% |
| Cuba City | 1.19% | 1.27% | 1.50% | 1.59% | 1.66% |
| Dickeyville | 1.38% | 1.42% | 1.46% | 1.51% | 1.55% |
| Fennimore | 1.28% | 1.37% | 1.45% | 1.52% | 1.58% |
| Glen Haven | 1.06% | 1.24% | 1.35% | 1.47% | 1.55% |
| Hazel Green | 1.14% | 1.19% | 1.28% | 1.45% | 1.52% |
| Highland | 1.15% | 1.30% | 1.34% | 1.44% | 1.50% |
| Kieler | 1.33% | 1.36% | 1.39% | 1.42% | 1.46% |
| Lancaster | 1.04% | 1.16% | 1.24% | 1.29% | 1.33% |
| Livingston | 0.98% | 1.05% | 1.10% | 1.16% | 1.23% |
| Montfort | 1.12% | 1.18% | 1.23% | 1.28% | 1.35% |
| Mount Hope | 0.70% | 0.78% | 1.13% | 1.25% | 1.40% |
| Muscoda | 0.69% | 0.96% | 1.40% | 1.52% | 1.57% |
| Patch Grove | 0.69% | 0.77% | 0.84% | 0.87% | 0.92% |
| Platteville | 1.11% | 1.39% | 1.50% | 1.55% | 1.60% |
| Potosi | 0.96% | 1.03% | 1.09% | 1.16% | 1.23% |
| Prairie Du Chien | 0.91% | 1.05% | 1.13% | 1.28% | 1.34% |
| Stitzer | 0.80% | 1.05% | 1.16% | 1.22% | 1.29% |
| Woodman | 0.70% | 0.87% | 1.06% | 1.16% | 1.24% |
Source: Ownwell
Property Tax Assessment Values Across Grant County, Wisconsin
When examining property taxes in Grant 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 Grant 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 Grant 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 Grant County.
For example, the median tax bill in Grant County is $2,384, which is close to the national median property tax bill of $2,400. Tax bills vary across the county, from $938 in Beetown to $3,309 in Platteville, where the median home price is $230,300.
Property Tax Assessment Values Across Grant County, Wisconsin
Source: Ownwell
$100,250
$165,275
$230,300
Median Grant County Market Value
$175,400
Median Wisconsin Market Value
$237,700
Median United States Market Value
$235,294
Property Tax Assessment Values Across Grant County, Wisconsin
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Bagley | $47,220 | $82,900 | $122,600 | $179,350 | $260,800 |
| Beetown | $43,390 | $61,750 | $100,250 | $116,025 | $133,380 |
| Bloomington | $75,550 | $101,675 | $123,450 | $165,750 | $219,830 |
| Blue River | $55,000 | $78,350 | $119,200 | $161,950 | $209,860 |
| Boscobel | $80,300 | $112,200 | $147,500 | $210,100 | $283,180 |
| Cassville | $61,460 | $83,900 | $114,500 | $165,900 | $294,900 |
| Cuba City | $112,250 | $147,750 | $190,600 | $248,150 | $330,380 |
| Dickeyville | $134,700 | $157,200 | $190,600 | $232,300 | $290,260 |
| Fennimore | $85,900 | $114,150 | $150,500 | $201,350 | $276,400 |
| Glen Haven | $60,830 | $80,200 | $112,500 | $156,775 | $226,120 |
| Hazel Green | $113,100 | $145,800 | $190,900 | $259,200 | $348,300 |
| Highland | $67,170 | $94,225 | $190,250 | $298,475 | $362,720 |
| Kieler | $154,800 | $184,900 | $210,000 | $245,200 | $291,180 |
| Lancaster | $102,900 | $130,550 | $169,300 | $241,750 | $349,980 |
| Livingston | $93,260 | $126,875 | $167,500 | $232,750 | $306,570 |
| Montfort | $100,800 | $130,175 | $171,800 | $242,500 | $314,980 |
| Mount Hope | $42,060 | $71,800 | $107,300 | $174,650 | $243,320 |
| Muscoda | $58,200 | $94,650 | $136,800 | $193,450 | $271,800 |
| Patch Grove | $83,160 | $104,900 | $139,400 | $160,900 | $205,940 |
| Platteville | $133,200 | $174,600 | $230,300 | $309,700 | $407,100 |
| Potosi | $99,040 | $135,000 | $189,800 | $248,100 | $365,900 |
| Prairie Du Chien | $47,100 | $76,600 | $156,800 | $210,900 | $276,180 |
| Stitzer | $52,660 | $93,200 | $130,000 | $157,500 | $243,540 |
| Woodman | $38,600 | $63,900 | $128,600 | $204,700 | $256,640 |
Source: Ownwell
Property Tax Bills Across Grant County, Wisconsin
Property tax bills in Grant County, Wisconsin are based on the assessed value of a home and the local tax rate applied to that value. When a property’s market value changes, the assessed value can shift as well, which can raise or lower the bill homeowners receive. Local budgets, school funding, and other taxing authorities also play a role in determining the final amount.
For a home with a median value of $175,400, the tax bill can vary widely across the county. The 25th percentile tax bill is $1,625, while the 75th percentile is $3,424 and the 90th percentile reaches $4,708. That means two similar homes may face very different bills depending on location and assessment details. Platteville has the highest median tax bill at $3,309, while Beetown has the lowest at $938. For homeowners, these differences can have a major impact on annual housing costs and long-term affordability.
Median Grant County Tax Bill
$2,384
Median Wisconsin Tax Bill
$3,453
Median United States Tax Bill
$2,400
Property Tax Bills Across Grant County, Wisconsin
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Bagley | $404 | $727 | $1,278 | $1,956 | $3,250 |
| Beetown | $259 | $535 | $938 | $1,127 | $1,334 |
| Bloomington | $803 | $1,220 | $1,545 | $2,207 | $2,899 |
| Blue River | $535 | $935 | $1,487 | $2,053 | $2,640 |
| Boscobel | $995 | $1,663 | $2,332 | $3,375 | $4,455 |
| Cassville | $745 | $1,101 | $1,625 | $2,363 | $4,336 |
| Cuba City | $1,515 | $2,112 | $2,736 | $3,603 | $4,954 |
| Dickeyville | $1,880 | $2,236 | $2,790 | $3,472 | $4,349 |
| Fennimore | $1,100 | $1,603 | $2,163 | $2,989 | $4,228 |
| Glen Haven | $715 | $987 | $1,499 | $2,177 | $3,579 |
| Hazel Green | $1,482 | $1,989 | $2,524 | $3,380 | $4,570 |
| Highland | $885 | $1,150 | $2,863 | $4,308 | $5,026 |
| Kieler | $2,070 | $2,492 | $2,907 | $3,446 | $4,186 |
| Lancaster | $1,203 | $1,558 | $2,082 | $3,052 | $4,279 |
| Livingston | $919 | $1,324 | $1,835 | $2,706 | $3,690 |
| Montfort | $1,134 | $1,525 | $2,090 | $3,114 | $4,178 |
| Mount Hope | $408 | $688 | $969 | $2,026 | $3,040 |
| Muscoda | $428 | $1,152 | $1,808 | $2,628 | $3,473 |
| Patch Grove | $572 | $805 | $1,175 | $1,407 | $1,889 |
| Platteville | $1,873 | $2,490 | $3,309 | $4,466 | $5,645 |
| Potosi | $979 | $1,397 | $2,058 | $2,898 | $4,367 |
| Prairie Du Chien | $432 | $763 | $1,804 | $2,615 | $3,744 |
| Stitzer | $473 | $1,021 | $1,460 | $1,942 | $3,168 |
| Woodman | $293 | $579 | $1,241 | $2,282 | $3,104 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | May 2 |
Links | |
|---|---|
| Grant Tax Assessor | |
| Website | landrecords.co.grant.wi.gov |