Sioux City, IA Property Tax Rates
Compare property tax rates across 6 ZIP codes in Sioux City, Iowa.
Avg Tax Rate
1.64%
Avg Annual Tax
$2,386
Avg Home Value
$145,900
ZIP Codes
6
Property Tax Overview: Sioux City, IA
Sioux City has 6 ZIP codes with property tax data. The average effective tax rate across these ZIPs is 1.64%, which is 29% above the Iowa average of 1.28%. Annual property taxes range from $2,785 (ZIP 51106) to $2,183 (ZIP 51109).
For a home at Sioux City's median value of $145,900, property taxes add approximately $200/month to housing costs. Sioux City home values are below the Iowa median of $164,780, which moderates the overall monthly tax burden.
Property tax rates within Sioux City vary by 0.32 percentage points across its ZIP codes. This variation typically reflects different school district boundaries, special assessment zones, and municipal service areas within the city.
Sioux City vs Iowa Average
Effective Tax Rate
29% above state average
Annual Property Tax
Median Home Value
Frequently Asked Questions
What is the average property tax rate in Sioux City, IA?
The average effective property tax rate in Sioux City, Iowa is 1.64%, based on 6 ZIP codes.
How much is property tax in Sioux City, IA?
The average median annual property tax in Sioux City is $2,386 per year, with a median home value of $145,900.
Which ZIP code in Sioux City has the lowest property tax rate?
ZIP code 51106 has the lowest effective tax rate in Sioux City at 1.49%, with a median annual tax of $2,785.
How many ZIP codes are in Sioux City, IA?
Sioux City, Iowa has 6 ZIP codes with property tax data available.
Which ZIP code in Sioux City has the highest property tax rate?
ZIP code 51109 has the highest effective tax rate in Sioux City at 1.81%, with a median annual tax of $2,183.
How do Sioux City property taxes compare to the Iowa average?
Sioux City's average effective rate of 1.64% is 29% above the Iowa state average of 1.28%.
What factors affect property tax rates between ZIP codes in Sioux City?
Property tax rate differences within Sioux City are typically driven by school district boundaries (which can account for 40–60% of a tax bill), special assessment zones for fire, water, or transit services, and whether a ZIP falls within city limits or an unincorporated area. Each taxing jurisdiction sets its own rate, which is why adjacent ZIP codes can have noticeably different effective rates.
Tips for Sioux City Homeowners
- •Appeal your assessment: If your home is assessed higher than its market value, you can file a property tax appeal. Studies suggest 30–60% of properties are over-assessed. Most counties offer a free informal review process.
- •Check your exemptions: Homestead exemptions can reduce your taxable value and are available to primary residents in most states. Senior, veteran, and disability exemptions may also apply. Exemptions must typically be applied for — they are not automatic.
- •Know your assessment cycle: Iowa reassesses properties periodically. After buying a home, your next tax bill may reflect a new assessment based on your purchase price. Budget accordingly, especially if you bought above prior assessed values.
- •Compare ZIP codes before buying: Even within Sioux City, effective tax rates can vary significantly across ZIP codes due to different school district overlays. Use PropertyTaxByZip to compare specific ZIPs before choosing a neighborhood.
Looking for county-level property tax data? View Woodbury County on TaxByCounty.com
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates (ZCTA level). ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes.
Estimates are informational only and should not be used as financial or legal advice.