Chelan County Assessor

Department of Revenue Valid Sales Study

To provide uniform taxation statewide, the Department of Revenue (Department) implements an annual study of property in each of the state's 39 counties. This piece of the 2017 ratio year study measures how closely Chelan County's 2016 single-family residence assessed values compare to market values. The study consists of two analysis where the Department selects a random sample of 60 sales from Chelan County's valid single-family residential sales report. These sales are then compared to comparable non-selling properties to determine if selling and non-selling properties are being assessed similarly. Click here to download Valid Sales Study (2016 Sales for 2017 Ratio Year)

Posted: 01/18/2018 02:23 PM
Last Updated: 01/18/2018 02:26 PM

Chelan County Calendar

Upcoming events and schedules at the county!

  • 01
    Nov 2025
    09:00 AM - 04:00 PM

    Monthly Drop-Off Saturday - Nov. 1, 2025

    Posted by: Solid Waste Management

    Drop-off Saturday at the Moderate Risk Waste Facility is Nov. 1.

    Chelan County Moderate Risk Waste Facility
  • 31
    Oct 2025
    08:00 AM - 05:00 PM

    Second Half Property Tax Deadline

    Posted by: Chelan County Treasurer

    Second half property tax deadline

  • 27
    Oct 2025
    09:00 AM - 05:00 PM

    Registration deadline for new voters or address updates by mail, online, email or over the phone.

    Posted by: Chelan County Elections

    Registration deadline for new voters or address updates by mail, online, email or over the phone.

  • 22
    Oct 2025
    03:00 PM - 05:00 PM

    Observer Training for November 4, 2025 General Election

    Posted by: Chelan County Elections

  • 22
    Oct 2025
    06:30 PM - 08:00 PM

    Planning Commission - October 22, 2025

    Posted by: Community Development

    By Zoom Video Conference or in person.