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Island County > Assessor's Department
IslandCounty Assessor

Assessment Notices have been mailed

June 14, 2022

The Assessor is required to appraise all properties at 100% of their true and fair market value, according to highest and best use of the property. Fair market value is the amount that a willing and unobligated buyer is willing to pay a willing and unobligated seller. The new value represents market value as of January 1 of this year based on market evidence from sales typically occurring last year. Market or sales comparison approach to value is determined, or estimated, based on multiple sales of similar properties. Most residential property is valued using this method.

If you believe that the new value is substantially incorrect compared to your estimate of market value, please call the Assessor's Office at (360) 679-7303 between 8:00 AM and 4:30 PM Monday - Friday.

You can talk with your appraiser regarding your value, alert us to any changes in your property or let us know about ownership or address changes. If you are unable to reach us, consider protecting your right to an appeal by following the instructions for the Appeal Process listed on the back of this form. An informational pamphlet describing the property tax system is available here.

Bernie Upchurch

Island County Assessor

Island County Assessor

What We Do

The Island County Assessor’s office is required to physically inspect, appraise and revalue all real property once every 6 years with an annual review and update based on sales analysis.

This appraisal cycle is established by the state constitution & state laws, enforced by the State Department of Revenue

In order to do our job we:

  • Maintain inventory, description, ownership, sales and mapping for all properties
  • Provide information, education and assistance
  • Provide public computer access to assessment data, also now available on the Internet through the Real Property Search.
  • Allocate value to taxing districts, calculate levy rates and certify tax roll to Treasurer
  • Administer and provide information for tax exemptions:
    • Senior citizen and disabled persons exemption
    • Open space taxation, forest land exemption, farm & agricultural exemption
    • Historic properties exemption
    • Residential home improvement exemption
  • Prepares defense of valuations for appeal boards
  • Maintain business personal property listings and audits

What We Don’t Do

We don’t mail or collect your taxes! The County Treasurer does this, contact them at 360-679-7302

We don’t take your appeal! The Board of Equalization does this, contact them at 360-679-7379

As your Assessor, one of our functions is to have this office be transparent and accessible to you. This web section will provide you with information and assistance on questions you may have regarding the Assessor’s office. If you have any other questions or concerns that are not addressed here, please contact us.

It is our goal to appraise all property fairly and equitably, to maintain accurate and accessible property records and give prompt and courteous customer service.

State law requires that the Assessor value property at 100% of true and fair market value. The market value is determined by the property owners who are buying and selling real estate in the market place. Finding the market value of your property means discovering the price most people would pay for your property. 

Please feel free to contact us at anytime.
The Assessor’s staff is always willing to answer your questions!


May 28, 2020

The Island County Assessor's Office is open to the public with safety and health precautions in effect. We encourage  you to complete as much of your business with us as possible via  phone or email.  If you are unable to complete your business with us by phone or email, you may call to set up an appointment prior to your visit by calling 360-679-7303, this will limit the amount of time you will be spending in the building and the Assessor's office.

Thank you,



On January 19, 2021, the Senate of the State of Washington, the House of Representatives concurrently, approved Senate Concurrent Resolution 8402 to extend Proclamation 20-28 until the termination of the COVID-19 state of emergency pursuant to RCW 43.06.210, or until rescinded by gubernatorial or legislative action, whichever occurs first.

  • The requirement that agencies respond to PRA requests within 5 business days is suspended only for requests not received electronically until the termination of the COVID-19 state of emergency or until rescinded by gubernatorial or legislative action, whichever occurs first. Public records requests received electronically will receive an initial response within 5 business days. Records production in response to requests may be delayed. Each County department and office will make a good faith effort to communicate with records requestors in a timely manner as staffing availability and workloads allow during the COVID-19 Emergency.

  • All in-person business pertaining to requests for records is suspended, including: making a public records request in person, onsite inspection or copying of records, and picking up records onsite until the termination of the COVID-19 state of emergency or until rescinded by gubernatorial or legislative action, whichever occurs first.

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