About
About the Assessment Department
Assessment is responsible for valuing all real and business personal property at 100% Real Market Value, establishing the Assessed Value for every property account, maintaining property information and ownership, and administering various special programs such as exemptions, special assessments, and manufactured home processing.

Our Mission
The mission of the Assessor’s office is to administer the property tax program accurately, fairly, and efficiently, in compliance with Oregon State tax laws, and to provide the highest level of customer service to those that we serve. Primary functions include valuing all real and business personal property, mapping, administration of special programs such as farm/forest special assessment, maintaining property ownership and information, processing all exemptions, calculating taxable values and property taxes for all properties.
Department Highlights
2026 Property Market Value
In 2026 our department valued 37,514 real and personal property accounts in the County at a real market value of $26,141,443,395 with a total Assessed value of $11,906,362,284.
2026 Extended Taxes
Total taxes and special assessments extended in 2026 were $212,292,964.54.
Annual Reviews
Every year the department reviews all taxing district budget request, enters all requested rates and amounts; computes the annual tax rates for all taxing districts, and assures uniform distribution of taxes to those districts.
Tax Lot Maps
Assessment maintains and updates nearly 1,459 maps consisting of 37,692 tax lots which are utilized by various county and city departments as well as numerous other agencies and the general public.