Harrison County, IA Property Tax: $2,214/yr (2026)
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The effective property tax rate in Harrison County is 1.34% of assessed home value. On a home at the county median value of $165,300, that works out to about $2,215 per year, or $185 per month. Harrison County is located in western Iowa, and is home to approximately 14,645 residents.
About Harrison County
Harrison County covers approximately 696.9 square miles in Iowa. The county is home to about 14,645 residents living in roughly 6,679 housing units, of which 69.1% are owner-occupied. The median household income is $77,027, and the median home was built in 1952.
Harrison County borders Crawford County, Monona County, Pottawattamie County, Shelby County, Burt 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 Harrison County Assessor's office to learn which exemptions apply to your property and when to file.
Harrison County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Harrison County, IA | 1.34% | $165,300 | $2,215 |
| Iowa state average | 1.34% | — | $2,215* |
| Crawford County | 1.32% | $136,300 | $1,799 |
| Monona County | 1.15% | $122,600 | $1,412 |
| Pottawattamie County | 1.61% | $183,600 | $2,961 |
| Shelby County | 1.27% | $156,200 | $1,976 |
| Burt County | 1.45% | $125,400 | $1,824 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Harrison County's median home value of $165,300. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Harrison County's property tax rate compare to the rest of Iowa?
At 1.34%, Harrison County is equal to the Iowa state average of 1.34%. On a home at the county median of $165,300, that means about $2,215 per year — versus $2,215 at the state average rate, a difference of $0 per year. Compared to the national average of 1.10%, Harrison County is above average.
What's a typical annual property tax bill in Harrison County?
For a home at the county median value of $165,300, the annual property tax in Harrison County is approximately $2,215 — or about $185 per month. For a home worth $247,950, expect around $3,323 per year. For a $330,600 home, approximately $4,430 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Harrison County property tax assessment?
Property assessment appeals in Harrison County are handled by the Harrison 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 Harrison 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 1.34% shown here. Contact the Harrison 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