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Sioux County, Iowa Property Taxes (2026)

Sioux County homeowners pay a median property tax of $2,722/year on a median home value of $235,600 — an effective rate of 1.16%, which is above the national median of 1.02%. Sioux County has a population of approximately 35,984.

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Effective Tax Rate

1.16%

Lower than the Iowa median of 1.34%

Median Home Value

$235,600

Annual Tax Bill

$2,722

~$227/month

Est. Annual Savings

$408

If reduced by 15%

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Sioux County, Iowa Property Tax Calculator

Enter your address to instantly see if you're overpaying on property taxes. Our tool compares your assessed value against recent comparable sales in Sioux County to estimate your potential savings.

  • Takes less than 2 minutes
  • Uses real Sioux County comparable sales data
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Average Annual Savings

$408

Estimated savings for Sioux County homeowners

Property Tax Rates: Sioux County vs. Iowa vs. National

Sioux County1.16%
Iowa Median1.34%
National Median1.02%

Key stat: The effective property tax rate in Sioux County, Iowa is 1.16%, compared to the Iowa median of 1.34% and the national median of 1.02%. (Source: U.S. Census Bureau, ACS 5-Year Estimates)

How Sioux County Compares Across Iowa

See where Sioux County's tax metrics fall relative to all 99 Iowa counties.

Tax Rate Distribution

Percentile distribution across all Iowa counties

10th

1.00%

25th

1.00%

Median

1.34%

75th

1.00%

90th

2.00%

Home Value Distribution

Percentile distribution across all Iowa counties

10th

$112,760

25th

$130,050

Median

$148,600

75th

$182,900

90th

$226,620

Tax Bill Distribution

Percentile distribution across all Iowa counties

10th

$1,464

25th

$1,721

Median

$1,976

75th

$2,415

90th

$2,871

Sioux County County Assessor Information

Sioux County County Assessor

Assessing Authority

Sioux County Assessor

Appeal Deadline

April 25 – May 5

Iowa appeal filing deadline

State

Iowa

How to appeal

Let TaxDrop handle it for you →

How to Appeal Your Property Taxes in Sioux County

If you own property in Sioux County, you have the legal right to appeal your assessed value. Here is the step-by-step process:

1

Review your assessment notice

Check the assessed value from the Sioux County Assessor. Compare it to recent sales of similar homes in your area.

2

File your appeal before the deadline

The Iowa deadline is April 25 – May 5. Missing this deadline means waiting until the next assessment year.

3

Gather supporting evidence

Compile recent comparable sales, photos of property condition issues, independent appraisals, or any factors that reduce your home's value.

4

Present your case

Attend a hearing or submit your evidence to the County Assessor. Present clear data showing your assessed value is too high.

5

Receive your decision

If successful, your assessed value and tax bill will be reduced. With a median bill of $2,722, even a 10-15% reduction means $272-$408 in annual savings.

Skip the hassle — let TaxDrop handle it

TaxDrop's licensed consultants analyze your property, build your case with comparable sales data, and represent you through the entire appeal process. You pay nothing unless we save you $500 or more.

Start Your Sioux County Appeal →Free Tax Rate Calculator

Property Tax Exemptions in Iowa

Iowa homeowners may qualify for exemptions that reduce their taxable value. Common exemptions include:

Homestead Exemption

Available to primary residence owners. Reduces the assessed value used to calculate your tax bill.

Senior/Over-65 Exemption

Additional exemption for homeowners age 65+. May include a tax ceiling that freezes your bill.

Disability Exemption

For homeowners with qualifying disabilities. Similar benefits to the over-65 exemption.

Veteran Exemption

Disabled veterans may receive partial or full exemptions depending on disability rating.

Frequently Asked Questions

What is the property tax rate in Sioux County, Iowa?
The median effective property tax rate in Sioux County, Iowa is 1.16%. On a home valued at $235,600, the median annual property tax bill is $2,722. Source: U.S. Census Bureau, ACS 2026.
How much are property taxes in Sioux County?
The median annual property tax bill in Sioux County is $2,722, which works out to approximately $227/month. This is based on the median home value of $235,600 and an effective tax rate of 1.16%.
How do I appeal my property taxes in Sioux County?
To appeal your property taxes in Sioux County, Iowa, you need to file with the Sioux County Assessor before the deadline of April 25 – May 5. You'll need evidence that your assessed value exceeds your property's market value, such as recent comparable sales. TaxDrop can handle this entire process for you — you pay nothing unless we save you $500 or more.
Is Sioux County a high property tax area?
Sioux County's effective tax rate of 1.16% is above the national median of 1.02%. It's below the Iowa median of 1.34%.
What is the deadline to appeal property taxes in Iowa?
The deadline to appeal property taxes in Iowa is April 25 – May 5. It's important to file before this deadline — missing it means waiting until the next assessment cycle. TaxDrop monitors deadlines and files on your behalf to ensure you never miss the window.
Can TaxDrop help lower my Sioux County property taxes?
Yes. TaxDrop helps homeowners in Sioux County, Iowa appeal their property tax assessments. We analyze your property, compare it against local comparable sales, and handle the entire appeal process. Our fee is 25% of your savings — and if we don't save you at least $500, you pay nothing.

Nearby Counties

Ringgold County

Rate: 1.27%

Tax bill: $1,909

Sac County

Rate: 1.03%

Tax bill: $1,423

Scott County

Rate: 1.52%

Tax bill: $3,221

Shelby County

Rate: 1.27%

Tax bill: $1,976

Story County

Rate: 1.47%

Tax bill: $3,586

Tama County

Rate: 1.39%

Tax bill: $1,945

Taylor County

Rate: 1.21%

Tax bill: $1,329

Union County

Rate: 1.79%

Tax bill: $2,108

← View all 99 Iowa counties

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