Cowlitz County Property Records

Cowlitz County property records are public documents maintained by the Assessor, Auditor, and Treasurer offices in Kelso, Washington. You can search these records to find parcel data, ownership history, assessed values, recorded deeds, tax account status, and more. This page explains how to access Cowlitz County property records online and in person, what each office handles, and what tools are available for parcel research across the county.

Cowlitz County Property Records Overview

Cowlitz County sits in southwest Washington along the Cowlitz River, with Kelso as the county seat and Longview as the largest city. The county has around 110,000 residents and covers a mix of rural timberland, river valley farmland, and urban areas. All property records here are public under Chapter 42.56 RCW, Washington's Public Records Act. Three elected offices handle most property-related functions: the Assessor, the Auditor, and the Treasurer. Each office is located in the Cowlitz County Administration Building at 207 N 4th Ave in Kelso.

The Assessor values property. The Auditor records documents. The Treasurer collects taxes. This division is standard across Washington counties, and Cowlitz follows it closely. Property owners, buyers, title companies, and researchers all interact with one or more of these offices regularly. The county's offices work Monday through Thursday, 7:00 a.m. to 4:30 p.m., and are closed on Fridays. Check the county website before visiting since hours can change around holidays and staff events.

Property records in Cowlitz County cover real property and personal property used for business. Real property includes land and the buildings on it. Personal property covers equipment, machinery, and other taxable assets owned by businesses. Both types appear in the Assessor's records, though recorded documents in the Auditor's office typically deal only with real property interests.

Cowlitz County Assessor Property Data

The Cowlitz County Assessor, Emily Wilcox, oversees all property appraisals in the county. Her office's mission is to estimate the value of every taxable property with accuracy, equity, and fairness. The Assessor is required under RCW 84.40.020 to value all taxable property as of January 1 each year. The office is reachable at 360-577-3010 or assessor@cowlitzwa.gov. For exemption questions, use exemptions@cowlitzwa.gov. Current use inquiries go to currentuse@cowlitzwa.gov.

The Assessor publishes annual reports and levy certification data for each taxing district in the county. The 2026 Payable Levy Rates and Certification of Values are available on the Assessor's website. These documents show how much taxable value exists in each district and how levy rates were set. The office also maintains an Assessor Map tool that links directly to parcel search functions. Researchers can use the Auditor's Public Record Search to find recorded instruments tied to specific parcels.

Tax relief programs include the Senior and Disabled Persons Exemption, the Senior and Disabled Citizens Deferral, and the Homeowners Limited Income Deferral. Classified land programs cover Designated Forest Land, Open Space, and Farm and Agricultural land. Each program has its own application and qualification criteria. The Assessor handles these as well as requests to combine parcels for tax purposes and applications for exemptions on church-owned property, non-profit property, and historic properties.

The Cowlitz County Assessor's website provides parcel search, levy rate reports, annual reports, and exemption program information for all taxable property in the county.

The Assessor's office at 207 N 4th Ave in Kelso manages all real and personal property appraisals for Cowlitz County and publishes annual levy rate certifications.

Note: The Assessor's office is open Monday through Thursday only. Plan visits or calls within those hours to avoid delays in getting property value or exemption information.

Recording Documents in Cowlitz County

The Cowlitz County Auditor, Carolyn Fundingsland, handles recording of all real property documents under RCW 36.22.010. The Recording Division at 360-577-3002 or by email to the Recording department accepts deeds, deeds of trust, reconveyances, liens, easements, plat maps, and other instruments that affect real property in the county. The Auditor's office is at 207 N 4th Ave, Room 206 in Kelso. Fax is 360-414-5552.

Electronic recording is available for Cowlitz County documents. Title companies and law firms use eRecording to file documents without traveling to the courthouse. Under RCW 65.08.070, recording a document in the county's records gives constructive notice to anyone who later searches those records. This means a buyer or lender who checks recorded documents before closing will be bound by anything already on file. Prompt recording after a real estate closing is important in any Washington county, and Cowlitz is no different.

The Auditor's Public Record Search tool lets you search recorded Cowlitz County documents online. This tool links directly from the Assessor's quick links as well. You can search by name, document type, or date range. The Auditor also handles marriage licensing, vehicle and vessel licensing, and elections, but the Recording Division is the part most property researchers will use.

The Cowlitz County Administration Building at 207 N 4th Ave in Kelso houses the Auditor and Treasurer offices, both of which handle key steps in property transactions.

Cowlitz County Property Tax Records

The Cowlitz County Treasurer, Debra Gardner, collects real and personal property taxes, manages excise tax under RCW 82.45, and acts as the financial custodian for the county and its taxing districts. The Treasurer's office is at 207 N 4th Ave, Room 202, Kelso, WA 98626. Phone is 360-577-3060. First-half 2026 property taxes were due April 30, 2026. Tax statements were mailed February 17.

Property owners can look up tax amounts due and pay online through the Treasurer's website. The site also links to the Assessor's Parcel Search so you can check your property's assessed value at the same time. Payment options include e-checks, credit or debit cards, and in-person cash payments at the Treasurer's office. The Treasurer manages foreclosure on delinquent properties and keeps records of prior foreclosure actions going back to 2016. Tax-title parcels, which are properties the county has acquired through tax foreclosure, are listed separately.

The Cowlitz County Investment Pool (CCIP) is administered by the Treasurer. This pool holds funds for the county and various taxing districts including school districts, fire districts, and port districts. Investment reports for 2023, 2024, and 2025 are published on the Treasurer's website. Finance meetings are held quarterly at 9:00 a.m. on the third Thursday of January, April, July, and October. Contact the Treasurer's office to confirm meeting schedules before attending.

The Treasurer's website links to the Assessor's Parcel Search, allowing property owners and researchers to review tax balances and assessed values together in one session.

Cowlitz County GIS and Historical Property Records

The Cowlitz County Assessor provides an Assessor Map tool on its website that connects to parcel data. Researchers can use this map to find parcels by address or parcel ID and view ownership and assessment data. The GIS resources tied to the Assessor's system show property boundaries and tax code areas for all parcels in the county. For more detailed GIS products, contact the county directly through the main Cowlitz County website at co.cowlitz.wa.us.

Historical Cowlitz County property records are available through the Washington State Digital Archives. This free online resource preserves deeds, mortgages, plat maps, and survey records going back to the territorial period. You can search by record type, date range, and party name. Documents are scanned at high resolution for legibility. The Digital Archives partners with county auditors to keep adding new collections. This is the best free source for older recorded documents that may not appear in the county's current online search tool.

Note: When using the Digital Archives for Cowlitz County records, search both "Cowlitz" and variations of grantor and grantee names since older documents often used inconsistent spelling.

Additional Cowlitz County Property Resources

The Washington Department of Revenue maintains a directory of all county assessor and treasurer websites. This is useful if you need to confirm current contact information or find links to county forms. The DOR also publishes the County Assessor's Manual, which explains how fair market value is determined and how levy rates are calculated across the state.

Washington law governs how Cowlitz County property is valued and how records are kept. RCW 84.41.030 requires continuous revaluation of all property on a cycle, so values stay current. Chapter 36.21 RCW defines the Assessor's duties and authority. Property owners who disagree with their assessed value can appeal to the Cowlitz County Board of Equalization. The Assessor's website has information on the appeal process and key dates.

The MRSC guide to county officials is a helpful background resource that explains the roles of each county property office, how the Board of Equalization works, and how exemption programs operate across Washington. For Cowlitz County specifically, it helps to read both the Assessor's FAQ and the Treasurer's FAQ before visiting an office in person.

Cities in Cowlitz County

Cowlitz County includes Kelso, Longview, Castle Rock, Kalama, Woodland, and Ryderwood. The following city has an individual property records page on this site.

Other communities in Cowlitz County include Kelso, Castle Rock, Kalama, and Woodland. All property records for these areas are filed through the county offices in Kelso.

Nearby Counties

These counties border Cowlitz County in southwestern and central Washington. Each has its own property records offices and online tools.