Fond du Lac County, WI Property Tax: $3,311/yr (2026)
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The effective property tax rate in Fond du Lac County is 1.58% of assessed home value. On a home at the county median value of $209,800, that works out to about $3,315 per year, or $276 per month. Fond du Lac County is located in eastern Wisconsin, and is home to approximately 104,053 residents.
About Fond du Lac County
Fond du Lac County covers approximately 719.6 square miles in Wisconsin. The county is home to about 104,053 residents living in roughly 45,908 housing units, of which 65.9% are owner-occupied. The median household income is $73,154, and the median home was built in 1971.
Fond du Lac County borders Calumet County, Dodge County, Green Lake County, Sheboygan County, Washington 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 Fond du Lac County Assessor's office to learn which exemptions apply to your property and when to file.
Fond du Lac County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Fond du Lac County, WI | 1.58% | $209,800 | $3,315 |
| Wisconsin state average | 1.44% | — | $3,021* |
| Calumet County | 1.52% | $252,100 | $3,830 |
| Dodge County | 1.55% | $218,400 | $3,395 |
| Green Lake County | 1.31% | $206,300 | $2,709 |
| Sheboygan County | 1.48% | $218,400 | $3,234 |
| Washington County | 1.20% | $316,200 | $3,795 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Fond du Lac County's median home value of $209,800. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Fond du Lac County's property tax rate compare to the rest of Wisconsin?
At 1.58%, Fond du Lac County is higher than the Wisconsin state average of 1.44%. On a home at the county median of $209,800, that means about $3,315 per year — versus $3,021 at the state average rate, a difference of $294 per year. Compared to the national average of 1.10%, Fond du Lac County is above average.
What's a typical annual property tax bill in Fond du Lac County?
For a home at the county median value of $209,800, the annual property tax in Fond du Lac County is approximately $3,315 — or about $276 per month. For a home worth $314,700, expect around $4,972 per year. For a $419,600 home, approximately $6,630 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Fond du Lac County property tax assessment?
Property assessment appeals in Fond du Lac County are handled by the Fond du Lac 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 Fond du Lac 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 1.58% shown here. Contact the Fond du Lac 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