Property Taxes in Coupeville, Washington
Median Coupeville, Washington effective property tax rate: 0.78%, significantly lower than the national median of 1.02%, and lower than the Washington state median of 0.92%.
Median Coupeville, Washington home value: $545,251
Median annual Coupeville, Washington tax bill: $4,199, $1,799 higher than the national median property tax bill of $2,400.
How are property taxes in Island calculated?
Property taxes in Coupeville, Washington are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Coupeville's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Coupeville, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
How Does the Coupeville Property Tax Calculator Work?
Use this Coupeville property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Coupeville's median effective tax rate of 0.78% — based on actual property records in Island County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessment district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Coupeville's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Coupeville: rates range from 0.78% in 98239 to 0.78% in 98239, primarily due to differences in school district levies and local assessment districts.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Coupeville.
About Coupeville Property Taxes
About Property Taxes in Coupeville, Island, Washington
Coupeville's median effective property tax rate of 0.78% is lower than the Washington state median of 0.92% and lower than the national median of 1.02%. This rate reflects the Island County base levy combined with local school district levies and Local improvement districts (LIDs) that vary by subdivision throughout the city.
Property tax rates are not uniform across Coupeville. Homeowners in ZIP code 98239 carry a median effective rate of 0.78%, while those in 98239 pay 0.78%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Island County. Understanding which part of Coupeville you live in can make a meaningful difference to your annual tax bill.
Coupeville homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before July 1, 2025.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Coupeville, Island County, Washington
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Coupeville's effective property tax rate to other cities in Washington and the median property tax rates in Washington and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Coupeville Tax Rate
0.78%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Island County Tax Rate
0.73%
Median Effective Washington Tax Rate
0.92%
Median Effective United States Tax Rate
1.27%
Property Tax Rates Across Coupeville, Island County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98239 | 0.68% | 0.74% | 0.78% | 0.80% | 0.83% |
Source: Ownwell
Property Tax Assessment Values Across Coupeville, Island County, Washington
When examining property taxes in Coupeville, Washington, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Island County estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Island County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of June.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Coupeville.
For example, the median home price in Coupeville is $545,251, with tax bills ranging significantly across the county. 98239 has the highest median home price at $545,251.
Property Tax Assessment Values Across Coupeville, Island County, Washington
Source: Ownwell
$459,597
$565,158
$670,719
Median Coupeville Market Value
$545,251
Median Island County Market Value
$549,996
Median Washington Market Value
$501,600
Median United States Market Value
$274,101
Property Tax Assessment Values Across Coupeville, Island County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98239 | $314,891 | $427,276 | $545,251 | $739,840 | $968,500 |
Source: Ownwell
Property Tax Bills Across Coupeville, Island County, Washington
How are property tax bills calculated in Coupeville?
Property tax bills in Coupeville are based on the assessed value of a home and the local tax rate set for Island County. The assessed value is compared with the market value of the property, and that figure is used to determine how much tax is owed. For a home with a median price of $545,251, the tax bill can vary widely depending on where the property is located and how it is assessed.
What factors affect the bill? Home size, location, and local taxing districts all play a role in the final amount. In Coupeville, the 25th percentile tax bill is $3,244, while the 75th percentile tax bill is $5,636 and the 90th percentile tax bill is $7,419. The median tax bill in ZIP code 98239 is $4,199.
How does this affect homeowners? Higher assessed values and local rates can lead to larger annual bills, making property taxes a major part of homeownership costs.
Median Coupeville Tax Bill
$4,199
Median Island County Tax Bill
$3,999
Median Washington Tax Bill
$4,512
Median United States Tax Bill
$3,209
Property Tax Bills Across Coupeville, Island County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98239 | $1,418 | $3,244 | $4,199 | $5,636 | $7,419 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
| Tax Bill | |
| Issued | February 10 |
| Due Date #1 | April 30 |
| Due Date #2 | October 31 |
Links | |
|---|---|
| Island Tax Assessor | |
| Website | assessor.islandcountywa.gov |