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Washington State University’s Columbia County Extension Office and staff connect the people of Columbia County to the research and knowledge base of the state’s land grant research university. This knowledge base provides solutions to local issues and concerns while stimulating the local economy. Our county-based faculty work with partners in the local communities to provide educational programs and leverage the broad resources of a major university to create a positive future for the residents of Columbia County.

The Columbia County Extension Office is located at 139 E Main Street, Dayton, WA 99328

Master Gardeners help solve plant problems

Water Quality Resources

Columbia County Youth Program Endowment

Would you like to make a donation the new 4-H Endowment?  Follow this link to the Blue Mountain Community Foundation website or bring your donation into our office at 139 East Main Street, Dayton, WA 99328.


County Programs

Extension programs and employment available to all without discrimination. Evidence of non-compliance may be reported through your local Extension Office.

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