Winnebago County, IA Property Tax: $1,800/yr (2026)
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The effective property tax rate in Winnebago County is 1.36% of assessed home value. On a home at the county median value of $132,300, that works out to about $1,799 per year, or $150 per month. Winnebago County is located in northern Iowa, and is home to approximately 10,648 residents.
About Winnebago County
Winnebago County covers approximately 400.5 square miles in Iowa. The county is home to about 10,648 residents living in roughly 5,080 housing units, of which 67.2% are owner-occupied. The median household income is $63,719, and the median home was built in 1961.
Winnebago County borders Cerro Gordo County, Hancock County, Kossuth County, Worth County, Faribault County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Iowa
Property taxes in Iowa 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 Iowa 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 Winnebago County Assessor's office to learn which exemptions apply to your property and when to file.
Winnebago County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Winnebago County, IA | 1.36% | $132,300 | $1,799 |
| Iowa state average | 1.34% | — | $1,773* |
| Cerro Gordo County | 1.50% | $154,100 | $2,305 |
| Hancock County | 1.19% | $129,300 | $1,541 |
| Kossuth County | 1.06% | $135,100 | $1,437 |
| Worth County | 1.08% | $142,300 | $1,530 |
| Faribault County | 1.05% | $120,200 | $1,263 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Winnebago County's median home value of $132,300. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Winnebago County's property tax rate compare to the rest of Iowa?
At 1.36%, Winnebago County is higher than the Iowa state average of 1.34%. On a home at the county median of $132,300, that means about $1,799 per year — versus $1,773 at the state average rate, a difference of $26 per year. Compared to the national average of 1.10%, Winnebago County is above average.
What's a typical annual property tax bill in Winnebago County?
For a home at the county median value of $132,300, the annual property tax in Winnebago County is approximately $1,799 — or about $150 per month. For a home worth $198,450, expect around $2,699 per year. For a $264,600 home, approximately $3,599 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Winnebago County property tax assessment?
Property assessment appeals in Winnebago County are handled by the Winnebago 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 Winnebago County?
Iowa 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 1.36% shown here. Contact the Winnebago 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