- Home
- Departments & Offices
- Assessor
Assessor
What We Do
The Island County Assessor's office is required to physically inspect, appraise and revalue all real property once every six years with an annual review and update based on sales analysis.
This appraisal cycle is established by the state constitution and 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 rolls to the Treasurer.
- Administer and provide information about tax exemptions: Senior citizen and disabled persons exemption
- Open space taxation, forest land exemption, farm and agricultural exemption
- Historic properties exemption
- Residential home improvement exemption
- Prepare 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. Call them at 360-679-7302
We don't take your appeal. The Board of Equalization does this. Call 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 values 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 marketplace. 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 any time. The Assessor's staff is always willing to answer your questions.
Visit our new Property Record Card
Property Record Card is an online record of all individual property information in a single location.
Visit our new Community Portal
Community is the perfect platform for citizen engagement, information is made available in an intuitive map-based format that is easy to search and navigate. Different areas can be viewed, and the information displayed can be customized to include, for example census, permits, property prices and details of schools.
Details of individual parcels and properties is a must-have online resource. People want to be able to access their own details and others of interest. Plot size, sales history, assessed value, local sales and much more are displayed in a simple easy to use format
Island County Assessor 2026 Budget Submission
The 2026 budget submission for the Assessor's Office emphasizes stability, efficiency, and enhanced valuation practices. It supports the office’s legal duties while advancing modernization, maintaining staffing, and prioritizing taxpayer service. The office remains focused on fiscal responsibility, accurate property valuations, and transparent tax administration.
January 2026
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
There are no published events in current month.
-
Kelly Mauck
Island County Assessor
-
Assessor
Physical Address
N.E. 7th Street
Room 208, Admin Building
Coupeville, WA 98239
Mailing Address
1 NE 7th Street
Coupeville, WA 98239
Phone 360-679-7303Fax 360-240-5565
Phone Numbers
- Camano: 360-629-4522
- Camano Annex: 360-387-3443
- S Whidbey: 360-321-5111
Hours
Whidbey Island
Monday through Friday
8 am to 4:30 pmCamano Island
Monday through Friday
8 am to Noon and 1 pm to 4:30 pm