Obstruction Island, San Juan County, Washington Property Taxes
Median OBSTRUCTION ISLAND, WA effective property tax rate: 0.46%, significantly lower than the national median of 1.02%, but lower than the Washington state median of 0.88%.
Median OBSTRUCTION ISLAND, WA home value: $611,270
Median annual OBSTRUCTION ISLAND, WA tax bill: $2,789, $389 higher than the national median property tax bill of $2,400.
How are property taxes in San Juan calculated?
Property taxes in OBSTRUCTION ISLAND, WA 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 OBSTRUCTION ISLAND’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in OBSTRUCTION ISLAND, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Obstruction Island, San Juan County, Washington Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.46%
Estimate Property Tax Bill
$2,812
$2,609
$1,102
Average Tax Savings
Property Tax Rates Across Obstruction Island, San Juan County, Washington
Local government entities set tax rates, which can vary widely within a state. Each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction, resulting in the property tax rate. While votes and laws are involved in setting tax rates and budgets, this is the annual process.
In OBSTRUCTION ISLAND in San Juan County, the effective property tax rate is 0.46%. This is significantly lower than the national median property tax rate of 1.02%. When comparing this to other cities in Washington, OBSTRUCTION ISLAND stands out for its lower tax rate. Washington's median property tax bill is lower than the national median of $2,400, making OBSTRUCTION ISLAND an attractive option for property owners looking to minimize their tax burden.
Understanding these differences is crucial for homeowners and potential buyers as they navigate property tax implications. By comparing OBSTRUCTION ISLAND’s effective property tax rate to other cities in Washington and the U.S., property owners can make informed decisions about their investments.
Property Tax Rates Across Obstruction Island, San Juan County, Washington
Source: Ownwell

0.40%
0.52%
0.64%
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 Obstruction Island Tax Rate
0.46%
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 San Juan County Tax Rate
0.62%
Median Effective Washington Tax Rate
0.88%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Obstruction Island, San Juan County, Washington
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|
Source: Ownwell
$1,102
Average Obstruction Island Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Assessment Values Across Obstruction Island, San Juan County, Washington
When examining property taxes in Obstruction Island, WA, 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 San Juan County Assessor 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.
In San Juan County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of May. 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 Obstruction Island.
For example, the median home price in Obstruction Island is $611,270, with tax bills ranging significantly across the county.
Property Tax Assessment Values Across Obstruction Island, San Juan County, Washington
Source: Ownwell

$496,770
$807,395
$1,118,020
Median Obstruction Island Market Value
$611,270
Median San Juan County Market Value
$691,520
Median Washington Market Value
$482,000
Median United States Market Value
$235,294
Property Tax Assessment Values Across Obstruction Island, San Juan County, Washington
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|
Source: Ownwell
$1,102
Average Obstruction Island Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Bills Across Obstruction Island, San Juan County, Washington
Property Tax Bills Across Obstruction Island, San Juan County, Washington
Source: Ownwell

$2,218
$4,400
$6,581
Median Obstruction Island Tax Bill
$2,789
Median San Juan County Tax Bill
$4,068
Median Washington Tax Bill
$4,284
Median United States Tax Bill
$2,400
Property Tax Bills Across Obstruction Island, San Juan County, Washington
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|
Source: Ownwell
$1,102
Average Obstruction Island Tax Savings
Save on your property taxes & more with Ownwell
Don't miss the deadline to appeal!
Dates | |
---|---|
Appeal Deadline | December 1 |
Tax Bill | |
Issued | February 10 |
Due Date #1 | April 30 |
Due Date #2 | October 31 |
Links | |
---|---|
San Juan Tax Assessor | |
Website | parcel.sanjuanco.com |
Save money on your property taxes with Ownwell

Enter your address.
With just your address Ownwell will analyze your property expenses to find you savings using real time market data, local expertise and AI.

Answer some questions.
The more we know about your property, the more we can save you. There's no up-front costs, it's risk-free to sign up. Only pay if you save!

Unlock your savings.
We gather evidence, file all documentation, and attend hearings on your behalf year after year, so you never overpay again.