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Emergency Alert
Columbia County
341 E. Main St.
Dayton, WA 99328

Chris Miller

341 E. Main St.
Suite 6
Dayton, WA  99328

Ph: (509) 382-2131
Fx: (509) 382-4830

Monday - Friday
8:30 am - 4:30 pm
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

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

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