Lafayette County, WI Property Tax: $2,980/yr (2026)
Last reviewed:
The effective property tax rate in Lafayette County is 1.64% of assessed home value. On a home at the county median value of $182,100, that works out to about $2,986 per year, or $249 per month. Lafayette County is located in southern Wisconsin, and is home to approximately 16,788 residents.
About Lafayette County
Lafayette County covers approximately 633.6 square miles in Wisconsin. The county is home to about 16,788 residents living in roughly 7,193 housing units, of which 73.7% are owner-occupied. The median household income is $72,091, and the median home was built in 1964.
Lafayette County borders Jo Daviess County, Stephenson County, Grant County, Green County, Iowa County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Wisconsin
Property taxes in Wisconsin are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in Wisconsin offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Lafayette County Assessor's office to learn which exemptions apply to your property and when to file.
Lafayette County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Lafayette County, WI | 1.64% | $182,100 | $2,986 |
| Wisconsin state average | 1.44% | — | $2,622* |
| Jo Daviess County | 1.74% | $193,900 | $3,383 |
| Stephenson County | 2.46% | $127,500 | $3,140 |
| Grant County | 1.44% | $186,300 | $2,683 |
| Green County | 1.64% | $236,900 | $3,882 |
| Iowa County | 1.56% | $248,100 | $3,864 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Lafayette County's median home value of $182,100. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Lafayette County's property tax rate compare to the rest of Wisconsin?
At 1.64%, Lafayette County is higher than the Wisconsin state average of 1.44%. On a home at the county median of $182,100, that means about $2,986 per year — versus $2,622 at the state average rate, a difference of $364 per year. Compared to the national average of 1.10%, Lafayette County is above average.
What's a typical annual property tax bill in Lafayette County?
For a home at the county median value of $182,100, the annual property tax in Lafayette County is approximately $2,986 — or about $249 per month. For a home worth $273,150, expect around $4,480 per year. For a $364,200 home, approximately $5,973 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Lafayette County property tax assessment?
Property assessment appeals in Lafayette County are handled by the Lafayette County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Lafayette County?
Wisconsin counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 1.64% shown here. Contact the Lafayette County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File