Please navigate to the page, "Archived Assessment Data prior to April 24, 2026" to locate archived data.
The most commonly used forms and publications are available below in the appropriate category. Most of the forms we use are published by the Oregon Department of Revenue, and the links below will retrieve the latest version of the form from their website. If a link is broken, please email assessor@columbiacountyor.gov, and we will update the link as soon as possible. If you need the form immediately or if you are unable to locate the form you need, please visit https://www.oregon.gov/dor/forms/Pages/default.aspx and search for the desired form.
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