Real Property valuation notices were mailed 10/6/23 for properties that had a change in value. Appeals must be postmarked no later than 30 days from the date of the notice. Before taking the step to appeal a value we would like to encourage you to take the time to come speak with us first so we may have the opportunity to address your concerns. 

The Assessor's office values properties each year and physically inspects 1/6th of the county every year. We are currently in revaluation cycle 5. This area ranges from the Tucannon to the East side of the North Touchet road.  The pink area on the map is our current inspection cycle. 

We inspect new construction countywide yearly and do this during the summer.

Reval area 5 map



The county Assessor determines the value of all taxable real and personal property in the county for the purpose of distributing tax liabilities in an equitable manner.

Tax Exemption Records

The Assessor is also responsible for processing and maintaining records regarding tax exemptions including:

  • Churches
  • Historical properties
  • Public properties
  • Programs like open space and forest land
  • Senior citizens

Senior Citizen/disabled income limits for 2024 tax year have changed. The new limit is $43,000. This must include all sources of income. You must meet age/disability and income requirement. A completed application and proof of income must be submitted to the Assessor's Office for review. 

Personal Property Information

As a business owner in Washington State you are responsible for filing a personal property listing with your local Assessor's Office by April 30th each year.

Property Information

For property information questions, please email Chief Deputy Assessor Melanie Mings or Assessor Tammy Ketterman or call (509) 382-2131.