99338 Property Tax Rate
Kennewick, Washington · Part of Benton County
Effective Tax Rate
0.76%
11.7% above state avgMedian Annual Tax
$4,013
$334/mo escrow
Estimate Your Tax
Annual Tax
$4,013
Monthly
$334
Eff. Rate
0.76%
Buyer decision brief
What ZIP 99338 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
$334/mo
Based on median annual tax paid
State context
Near the Washington average
Washington average: 0.77%
Data confidence
High confidenceThe Census margin of error is $228, about 6% of the median tax estimate.
Verify before you offer
- Confirm parcel assessed value with Benton 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 99338 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
$228 tax MOE, 6% 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
Benton County is used for assessor verification and broader context.
Tax bill anatomy
What can change your actual bill in ZIP 99338
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 $526,700, but your bill starts with the local assessed value for a specific parcel.
Effective rate
The displayed rate is 0.76%, 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 Washington and county rules. Ask how sale price affects the next assessment cycle.
Escrow impact
The median tax paid in this ZCTA equals about $334 per month before insurance, HOA dues, or special assessments.
Assessor verification
Benton County assessor or tax collector records are the source of truth for parcel taxes, appeal windows, and exemptions.
How ZIP 99338 Compares
Median Annual Property Tax
ZIP 99338
0.76%
Effective rate
Washington Avg
0.77%
Effective rate
National Avg
1.10%
Effective rate
State Ranking
Property Tax Rank in Washington
Lower than 55% of ZIP codes in Washington(45th percentile, 538 ZIPs compared)
Property Tax Analysis
Property Tax Insights for ZIP 99338
Property owners in ZIP code 99338 (Kennewick, Washington) pay a median of $4,013/year in property taxes on homes valued at $526,700. This translates to an effective tax rate of 0.76%, which is near the Washington state average of 0.77%.
The monthly property tax burden for a median-valued home in 99338 is approximately $334, which factors into escrow payments on mortgages. This ZIP code is located within Benton County. This is $421 more than the Washington average of $3,592/year.
Compared to similar ZIP codes in Washington, 99338 has higher property taxes. ZIP codes with similar effective rates include 98370 (0.76%) and 98006 (0.76%).
In Kennewick, property taxes represent approximately 3.5% of the median household income of $116,002, providing context for the relative tax burden on homeowners in this area.
Washington has no state income tax and does not reassess property at sale — your assessed value is locked in until you make major improvements or the county conducts a revaluation. Benton County offers a Senior/Disabled Exemption Program and Property Tax Reduction Program for income-qualified households — file applications with the Benton County Assessor before the annual deadline to lower your tax bill. Request your property's assessment information from the Benton County Assessor within 30 days of purchase and confirm your eligibility for exemption programs available in the county.
Frequently Asked Questions
What is the property tax rate in ZIP code 99338?
How much are property taxes in Kennewick, WA (99338)?
How does ZIP 99338 compare to the Washington average?
What is the median home value in ZIP 99338?
What county is ZIP code 99338 in?
Margin of Error
The median property tax estimate for this ZIP code has a margin of error of ±$228. ZCTA-level data has wider margins than county-level estimates due to smaller sample sizes.
County-Level Data
ZIP code 99338 is part of Benton County, Washington. View the full county profile for broader context and more data.
View Benton County on TaxByCounty →Explore Kennewick, WA
View all 3 ZIP codes in Kennewick with property tax comparisons.
View Kennewick Property Tax Rates →Why compare these ZIPs?
Better comparison set for ZIP 99338
Each ZIP highlights a homebuyer tradeoff: lower rate, stronger value context, shared county rules, city boundary changes, or nearby missing data.
99346
Plymouth, WA
0.53 percentage points lower than ZIP 99338.
Rate
0.23%
Tax
$500
Quality
74
99345
Paterson, WA
0.15 percentage points lower than ZIP 99338.
Rate
0.61%
Tax
$2,563
Quality
84
98944
Sunnyside, WA
0.05 percentage points lower than ZIP 99338.
Rate
0.71%
Tax
$1,645
Quality
89
98004
Bellevue, WA
0.26 percentage points lower than ZIP 99338.
Rate
0.50%
Tax
$10,001
Quality
82
98039
Medina, WA
0.26 percentage points lower than ZIP 99338.
Rate
0.50%
Tax
$10,001
Quality
68
98040
Mercer Island, WA
0.23 percentage points lower than ZIP 99338.
Rate
0.53%
Tax
$10,001
Quality
70
98075
Sammamish, WA
0.08 percentage points lower than ZIP 99338.
Rate
0.69%
Tax
$10,001
Quality
77
98112
Seattle, WA
0.05 percentage points lower than ZIP 99338.
Rate
0.71%
Tax
$10,001
Quality
82
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.