Island County, Washington Property Taxes

Name: Property Tax Bills Across Island County, Washington
Creator: Ownwell
License: https://creativecommons.org/licenses/by-nc/4.0/

Median Island County effective property tax rate: 0.68%, significantly lower than the national median of 1.02%.
Median Island County home value: $541,558
Median annual Island County tax bill: $3,760, $1,360 higher than the national median property tax bill of $2,400.

How are property taxes in Island County calculated?

Property taxes in Island County 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 your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Oak Harbor or another part of Island County, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Island County, Washington Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.68%

Estimate Property Tax Bill

$3,683

$3,417

Ownwell’s Island County Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Island County with just two data points. By entering your property's estimated assessed value, our calculator applies Island County’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a more precise calculation for your property tax obligations. This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Island County. For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Island County, Washington

Local government entities set tax rates, which can vary widely within a state. Each county annually estimates its required budget to provide essential services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate. While votes and laws are involved in setting tax rates and budgets, this is the annual process in a nutshell. Island County in Washington, for instance, has an effective property tax rate that can be compared to other counties in the state or the U.S. median property tax rate. The median property tax rate in Island County is 0.68%, which is lower than the national median property tax rate of 1.02%. Within Island County, Greenbank has the highest median tax rate at 0.75%, while Clinton boasts the lowest at 0.62%. These rates highlight the variation in property tax rates within the same county, emphasizing the importance of understanding local tax policies and their impact on property owners.

Property Tax Rates Across Island County, Washington

Source: Ownwell

0.62%

0.68%

0.75%

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

0.68%

Median Effective Washington Tax Rate

0.88%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Island County, Washington

City	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
Camano Island	0.60%	0.66%	0.68%	0.70%	0.72%
Clinton	0.57%	0.60%	0.62%	0.63%	0.65%
Coupeville	0.65%	0.70%	0.73%	0.75%	0.78%
Freeland	0.56%	0.60%	0.62%	0.64%	0.66%
Greenbank	0.65%	0.70%	0.75%	0.76%	0.78%
Langley	0.55%	0.60%	0.62%	0.65%	0.69%
Oak Harbor	0.63%	0.68%	0.73%	0.83%	0.85%
Seattle	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Assessment Values Across Island County, Washington

When examining property taxes in Island County, 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 Assessor's Office 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 April. 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 Island County. For example, the median tax bill in Island County is $4,654, with tax bills ranging significantly across the county. Langley has the highest median home price at $658,994.

Property Tax Assessment Values Across Island County, Washington

Source: Ownwell

$454,081

$556,538

$658,994

Median Island County Market Value

$541,558

Median Washington Market Value

$482,000

Median United States Market Value

$235,294

Property Tax Assessment Values Across Island County, Washington

City	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
Camano Island	$345,799	$478,266	$639,869	$867,070	$1,113,332
Clinton	$341,028	$464,077	$622,331	$862,213	$1,174,723
Coupeville	$298,217	$417,570	$536,597	$727,266	$956,840
Freeland	$320,716	$474,560	$624,206	$877,270	$1,350,491
Greenbank	$310,200	$463,430	$658,165	$905,545	$1,149,200
Langley	$359,080	$488,064	$658,994	$853,306	$1,067,285
Oak Harbor	$208,283	$363,604	$454,081	$553,146	$713,790
Seattle	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Bills Across Island County, Washington

In Island County, WA, property tax bills are calculated based on the assessed value of a home, which is determined by local assessors. The tax rate, applied to this assessed value, ultimately determines the amount homeowners owe. With a median home price of $541,558, the county's property tax bills vary significantly, with the 25th percentile at $2,787 and the 75th percentile reaching $4,999. This range reflects the diverse property values within the county. For those at the 90th percentile, the tax bill can climb to $6,772, highlighting the impact of higher property values on tax obligations. In Greenbank, homeowners experience the highest median tax bill of $4,654, whereas Oak Harbor residents see a lower median bill of $3,418. Compared to the national median property tax bill of $2,400, Island County's figures suggest a higher tax burden, which can influence homeowners' financial planning. Understanding these factors helps homeowners anticipate their tax responsibilities and manage their budgets effectively.

Property Tax Bills Across Island County, Washington

Source: Ownwell

$3,418

$4,036

$4,654

Median Island County Tax Bill

$3,760

Median Washington Tax Bill

$4,284

Median United States Tax Bill

$2,400

Property Tax Bills Across Island County, Washington

City	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
Camano Island	$2,030	$3,127	$4,251	$5,801	$7,404
Clinton	$1,565	$2,737	$3,761	$5,237	$7,265
Coupeville	$1,225	$2,975	$3,875	$5,205	$6,805
Freeland	$1,328	$2,715	$3,804	$5,454	$8,568
Greenbank	$1,704	$3,177	$4,654	$6,543	$8,349
Langley	$1,686	$2,872	$4,053	$5,343	$6,889
Oak Harbor	$918	$2,570	$3,418	$4,146	$5,035
Seattle	N/A	N/A	N/A	N/A	N/A

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

Find your City

Camano Island Clinton Coupeville