51105 Property Tax Rate
Sioux City, Iowa · Part of Woodbury County
Effective Tax Rate
1.62%
33.7% below state avgMedian Annual Tax
$1,370
$114/mo escrow
Estimate Your Tax
Annual Tax
$1,370
Monthly
$114
Eff. Rate
1.62%
Buyer decision brief
What ZIP 51105 means for your housing budget
Use this ZIP page to compare recurring tax burden before you compare listing prices. The numbers below are Census ZCTA estimates, so they are strongest for neighborhood comparison and weakest for parcel-specific tax planning.
Monthly escrow signal
$114/mo
Based on median annual tax paid
State context
0.34 percentage points above the Iowa average
Iowa average: 1.28%
Data confidence
High confidenceThe Census margin of error is $165, about 12% of the median tax estimate.
Verify before you offer
- Confirm parcel assessed value with Woodbury County assessor.
- Check homestead, senior, veteran, and disability exemptions.
- Ask whether purchase triggers reassessment or value-cap reset.
- Review school district and special assessment boundaries.
Lower-rate similar ZIPs
This is informational content, not tax, legal, or mortgage advice. Local assessor records remain the source of truth for a specific property.
Data confidence ledger
Can you trust ZIP 51105 for comparison?
ACS vintage
2019-2023 ACS 5-Year Estimates
Five-year Census ZCTA estimates.
ZCTA caveat
Census area, not parcel boundary
USPS ZIP routes and taxing districts can differ inside the same area.
Field completeness
3/3 required fields
Median tax, home value, and derived rate are present.
MOE status
Strong ACS confidence
$165 tax MOE, 12% of the median tax estimate.
Last site refresh
March 10, 2026
Dataset and page-quality audit run locally before publication.
County fallback
County advisory available
Woodbury County is used for assessor verification and broader context.
Tax bill anatomy
What can change your actual bill in ZIP 51105
Use the ZIP estimate to compare neighborhoods, then verify these parcel-level inputs before relying on a payment estimate.
Assessed value
The ZCTA median home value is $84,700, but your bill starts with the local assessed value for a specific parcel.
Effective rate
The displayed rate is 1.62%, derived from median tax paid divided by median home value.
Exemptions
Homestead, senior, veteran, disability, and local exemptions can reduce taxable value. Confirm eligibility before estimating escrow.
Reassessment
A purchase can change assessed value depending on Iowa and county rules. Ask how sale price affects the next assessment cycle.
Escrow impact
The median tax paid in this ZCTA equals about $114 per month before insurance, HOA dues, or special assessments.
Assessor verification
Woodbury County assessor or tax collector records are the source of truth for parcel taxes, appeal windows, and exemptions.
How ZIP 51105 Compares
Median Annual Property Tax
ZIP 51105
1.62%
Effective rate
Iowa Avg
1.28%
Effective rate
National Avg
1.10%
Effective rate
State Ranking
Property Tax Rank in Iowa
Higher than 89% of ZIP codes in Iowa(89th percentile, 908 ZIPs compared)
Property Tax Analysis
Property Tax Insights for ZIP 51105
Property owners in ZIP code 51105 (Sioux City, Iowa) pay a median of $1,370/year in property taxes on homes valued at $84,700. This translates to an effective tax rate of 1.62%, which is 27% above the Iowa state average of 1.28%.
The monthly property tax burden for a median-valued home in 51105 is approximately $114, which factors into escrow payments on mortgages. This ZIP code is located within Woodbury County. This is $695 less than the Iowa average of $2,065/year.
Compared to similar ZIP codes in Iowa, 51105 has higher property taxes. ZIP codes with similar effective rates include 51104 (1.62%) and 52240 (1.62%).
In Sioux City, property taxes represent approximately 2.9% of the median household income of $46,940, providing context for the relative tax burden on homeowners in this area.
Iowa reassesses all property at market value with no statutory increase limit, and the Woodbury County Assessor will place your purchase on the rolls at its fair market value at closing. The Homestead Property Tax Credit (HPTC) provides tax relief up to $1,375 per year for homeowners earning below $32,400, directly reducing your annual property tax bill. Contact the Woodbury County Assessor to file your HPTC application within 60 days of purchase and confirm you meet all eligibility requirements.
Frequently Asked Questions
What is the property tax rate in ZIP code 51105?
How much are property taxes in Sioux City, IA (51105)?
How does ZIP 51105 compare to the Iowa average?
What is the median home value in ZIP 51105?
What county is ZIP code 51105 in?
Margin of Error
The median property tax estimate for this ZIP code has a margin of error of ±$165. ZCTA-level data has wider margins than county-level estimates due to smaller sample sizes.
County-Level Data
ZIP code 51105 is part of Woodbury County, Iowa. View the full county profile for broader context and more data.
View Woodbury County on TaxByCounty →Explore Sioux City, IA
View all 6 ZIP codes in Sioux City with property tax comparisons.
View Sioux City Property Tax Rates →Why compare these ZIPs?
Better comparison set for ZIP 51105
Each ZIP highlights a homebuyer tradeoff: lower rate, stronger value context, shared county rules, city boundary changes, or nearby missing data.
51108
Sioux City, IA
$81,900 higher median home value than ZIP 51105.
Rate
1.71%
Tax
$2,853
Quality
94
51109
Sioux City, IA
$35,700 higher median home value than ZIP 51105.
Rate
1.81%
Tax
$2,183
Quality
94
51106
Sioux City, IA
0.12 percentage points lower than ZIP 51105.
Rate
1.49%
Tax
$2,785
Quality
101
51103
Sioux City, IA
0.00 percentage points lower than ZIP 51105.
Rate
1.61%
Tax
$2,006
Quality
101
51104
Sioux City, IA
0.00 percentage points lower than ZIP 51105.
Rate
1.62%
Tax
$3,119
Quality
101
51026
Hornick, IA
0.72 percentage points lower than ZIP 51105.
Rate
0.90%
Tax
$2,100
Quality
84
51055
Sloan, IA
0.68 percentage points lower than ZIP 51105.
Rate
0.94%
Tax
$1,960
Quality
84
51019
Danbury, IA
0.67 percentage points lower than ZIP 51105.
Rate
0.95%
Tax
$838
Quality
84
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.