Assessor's Data

The Assessor’s Office maintains the assessment roll of the county and parcel boundaries. The links below provide data used for ad valorem taxation.

Historical Fieldsheets and Deed Records Search

With funding assistance from Washington Secretary of State, the Assessor's Office digitized approximately 23,000 fieldsheets and 20,000 deed records.

Fieldsheets” provide historical assessment and permit history on real property. The Assessor's Office stopped using fieldsheets in 2009. Therefore, if a structure was built after 2009, a fieldsheet will not be available. 

"Deed records” provide a historical ownership index for properties from the late 1960s through October 2015.

To search for assessment and ownership historical information, please click on the link below. You will be redirected to the Washington State Digital Archives. Search for the records using a parcel number. 

Statement of Assessments Booklet

The Statement of Assessments booklet is a resource for property tax information such as the amount of taxes the districts will collect, the tax rate for each Tax Code Area (TCA) as well as other statistics about San Juan County that you may find helpful. The Statement of Assessments booklet is completed every year after tax rolls have been certified to the Treasurer’s Office in January.

The Statement of Assessments booklets for tax years 1988 through 2024 are available online:

Historical Levy Information