Snohomish County Property Records

Snohomish County property records are kept by three main offices: the Assessor, the Auditor-Recorder, and the Treasurer, all based in Everett. You can search parcel data, review assessed values, look up deed filings, and pay taxes online or in person at the county campus on Rockefeller Avenue. With about 840,000 residents, Snohomish County is one of the larger counties in Washington, and its property records system reflects that scale. Whether you need current ownership details, past sales data, or historical tax information, the county has multiple tools to help you find what you are looking for.

Snohomish County Assessor Property Records

The Snohomish County Assessor is located on the first floor of the Administration East Building at 3000 Rockefeller Avenue in Everett. The office values all taxable real and personal property in the county each year. Under RCW 84.40.020, the assessment date is January 1 and all records are open to public inspection. The assessor publishes parcel data including legal descriptions, land values, improvement values, and ownership information.

The office has several divisions. Residential appraisers handle single-family homes and smaller properties. The commercial division covers larger buildings and commercial sites. The exemptions division manages programs for seniors and people with disabilities. For 2024, the Senior Exemption income limit increased to a maximum of $75,000 in disposable income. If you think you may qualify, contact the office at (425) 388-3540 or email assessor@snoco.org.

The assessor also maintains the county's cadastral GIS data, which includes land ownership boundaries, administrative taxing district lines, and public land survey information in formats that support both print and digital mapping. Under RCW 84.41.030, all real property must be revalued on a continuous basis to keep assessments current.

The assessor's website is at snohomishcountywa.gov/2934/Assessor and includes access to property information, exemption forms, and links to property tax-related statutes.

The Assessor's Office has a property search portal: Snohomish County Online Property Information (SCOPI) an interactive map tool you can use to search for assessment data using either a parcel number or street address. You can also download GIS data from the county's Open Data Portal.

The Assessor's site gives you direct access to parcel data, exemption applications, and the SCOPI mapping tool for Snohomish County property searches.

Snohomish County Auditor-Recorder

The Snohomish County Auditor-Recorder is the official recording office for real property documents in the county. Under RCW 36.22.010, the county auditor acts as recorder and must file all qualifying instruments without delay upon payment of fees. Documents recorded here include deeds, mortgages, deeds of trust, liens, releases, easements, plat maps, and other instruments that affect title to real estate in Snohomish County.

Under RCW 65.08.070, any written instrument that creates, transfers, mortgages, or assigns an interest in real property qualifies for recording. Recording provides constructive notice to the public. An unrecorded instrument may be valid between the two parties, but it can be void against a later buyer who records first without notice of the earlier instrument. This makes the Auditor-Recorder's records important when checking ownership chains.

Before the auditor records a real estate transfer document, the county treasurer must confirm that all property taxes are paid or that none are due. This requirement is tied to the Real Estate Excise Tax under RCW 82.45. The auditor's general contact number is (425) 388-3494.

The main county government address is 3000 Rockefeller Avenue, Everett, WA 98201. Phone for the county campus: (425) 388-3411.

The Auditor-Recorder's office handles deed and mortgage filings for all properties in Snohomish County, making it the primary source for recorded document history.

Snohomish County Treasurer and Tax Records

The Snohomish County Treasurer bills and collects property taxes, maintains tax payment history, and handles foreclosure on properties with delinquent taxes. The 2026 tax statement was mailed in mid-February. First half payments are due April 30, 2026. You can view or pay your taxes online through the treasurer's payment portal. Drop box payments are accepted on the county campus 24 hours a day. Credit card payments can be made by phone at (833) 440-3332.

Tax records are useful when researching property ownership because they show who is responsible for taxes on a given parcel. The treasurer also collects Real Estate Excise Tax on property sales under RCW 82.45. If you need to check whether taxes are paid on a parcel before buying it, the treasurer's office can confirm the current tax status.

Note: The treasurer's office stopped accepting pennies after November 12, 2025. Exact change is required for cash payments at the office.

The Treasurer's online payment portal lets you look up current and prior year tax balances and make payments for any parcel in Snohomish County.

Snohomish County Property Search Online

The county's SCOPI mapping tool (Snohomish County Online Property Information) is the main way to search property records online. You can look up parcels by address or parcel number. Results show assessed values, ownership data, legal descriptions, and tax district information. TRSQ maps, also called assessor or parcel maps, let you view your property's location using Township, Range, Section, and Quarter in TIF and PDF formats.

For historical property research, the Washington State Archives Digital Archives has records for Snohomish County going back many decades. These include real property record cards with tax assessments, construction dates, ownership history, and sometimes photographs. To search by parcel number, enter the 10-digit parcel number with a hyphen between the 6th and 7th digits.

The Washington Department of Revenue also maintains a directory of all county assessor and treasurer websites. This is a good starting point if you are researching property records across multiple counties in Washington.

The SCOPI tool provides interactive parcel search and mapping across Snohomish County, with links to assessor data and tax information for each parcel.

Washington State Law and Snohomish County Records

Several statutes govern how property records are created and kept in Snohomish County. Chapter 36.21 RCW sets out the general duties of the county assessor. The assessor must value all taxable real and personal property in both incorporated and unincorporated areas to make sure tax burdens are spread fairly across taxing districts. Taxpayers who disagree with the assessor's value can appeal to the county Board of Equalization.

The Public Records Act, Chapter 42.56 RCW, covers access to government records. Most property records held by the Assessor and Auditor are public. Some income data in assessor files may be exempt from inspection, but ownership records, deed filings, parcel maps, and tax history are generally available to anyone who asks. Note that RCW 42.56.070(8) prohibits agencies from providing lists of individuals for commercial purposes.

Recording standards are set by RCW 65.08.070 and related statutes in Title 65 RCW. Documents must meet formatting requirements and must be recorded in the county where the property is located. The MRSC guide on county assessor roles provides a plain-language overview of how assessors operate under Washington law.

Property Tax Exemptions in Snohomish County

Snohomish County offers several property tax relief programs. The Senior Exemption is the most common. For 2024, the income limit increased to $75,000 in disposable income. Seniors and people with disabilities who qualify can get a reduction in the taxable value of their home. To apply, call (425) 388-3540 or email assessor@snoco.org. You can also apply online and check your application status using the tool on the assessor's website.

Current use programs allow land used for farming, forestry, or open space to be taxed at a lower rate based on that use rather than at full market value. These programs are administered by the assessor. If the land use changes, back taxes and interest may apply. The assessor's website has full details on current use applications and qualifications.

If you believe the assessor has overvalued your property, you can appeal to the Snohomish County Board of Equalization. The appeal period is set by state law. The Department of Revenue publishes guidance on appeals at dor.wa.gov.

Note: Exemption income limits and qualification rules can change from year to year. Always confirm current requirements directly with the Assessor's Office before applying.

Cities in Snohomish County

Snohomish County includes several cities and communities. All property records for parcels in this county are held by the Snohomish County offices in Everett, regardless of which city the property is in.

Nearby Counties

These counties share borders with Snohomish County. Each keeps its own property records. If you are unsure which county a parcel is in, the county assessor can help confirm jurisdiction.