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Island County > Assessor's Department
IslandCounty Assessor

Inspection of Revaluation Area 1   


September 5, 2017

As part of our annual review, inspection of revaluation Area 1 (1/6th of the county) is on our calendar this year. The Island County Assessor's office will be conducting in person appraiser visits to each parcel in the city of Oak Harbor and South of Oak Harbor through March of 2018.

Visits are required by state law RCW 84.40.04 Appraisers are identifiable by their badge, the emblem on the county car and/or outerwear with "ASSESSOR" visible on the jacket or vest.  Our visit will allow us to update our records with you or by visual observations if you are not home.  We visit 9,000 parcels annually and are unable to schedule visits. 

Should you have concerns please feel free to contact the Assessor's Office at 360-679-7303.

Mary Engle

Island County Assessor


Island County Assessor

As your Assessor, one of my 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 me.

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.

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


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

Mary Engle
Island County Assessor​

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