New Office Hours Effective Feb 1st

Beginning Monday, Feb. 1st, the Assessor's Office will be changing their office hours. The new hours will be 7:30am to 5:00pm Monday through Thursday.  The office will be closed on Fridays. 

The goal of this schedule change is to expand the hours of availability to the public and adapt to the continuing challenges caused by Covid-19. In addition to the expanded office hours, the office will be transitioning to in-person services beginning Monday, February 8th. Please note, this will be limited to one party in the lobby at a time, and masks are required in the building. We encourage visitors to call ahead at 360-577-3010 to make an appointment for those transactions that cannot be handled over the phone. 


The role of the Assessor is to estimate (appraise or assess) the value of all taxable property. It is our mission to serve the citizens of Cowlitz County by achieving accuracy, equity, and fairness in the estimation of value.

It is our responsibility to: 1) Neither underestimate nor overestimate the value of property; 2) See that all properties are assessed in a similar manner; 3) Ensure that each owner’s share of the total property tax is the same as his or her share of the total value of property.


  • Based on adherence to professional standards and in accordance with Washington State Law, we are committed to creating a quality product.
  • We will provide courteous, efficient, and outstanding service to all customers.
  • We will provide training and technology that will enable employees to achieve excellence.