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Melissa R. McKnight Grant County Assessor

Welcome to the Grant County Assessor’s webpage. This site has been prepared to help you better understand the functions of the Assessor’s office. As your Assessor, I am committed to serve and assist you personally in any matters dealing with this office. Welcome from the Assessor!


It is the purpose and role of the Assessor’s office to establish Fair Market Value for all property in Grant County for tax purposes. The Assessor is required by law to set Fair Market Value and to assure that all values are equitable, fair and uniform to all citizens of Grant County.

What's new on your tax statements   


McCleary Versus Stare of Washington Information

Contact Information

Office Hours: Mon - Fri   8:00a.m. to 5:00p.m.

Location: Courthouse Annex on the 1st floor  Room 107
Telephone: (509) 754-2011 ext 2683
Toll Free: (inside Washington) (800) 572-0119 ext. 2683


Parcel Information

  • MapSifter-Includes Maps and District Information Now Multi Browser Compatible! Feel free to use your browser of choice. MapSifter is no longer Silverlight dependant.

  • TaxSifter-Includes Assessor and Treasurer Information



Sales Information

TaxSifter Option: The "Sales Search" tool allows for the selection of sales based on various criteria. The results are presented in a tabular fashion. The information can be copied and pasted into most spread sheet and/or word processing software.


MapSifter Option: Using the legend located in the lower left corner of the MapSifter start screen, select which years of sales to be displayed. "Zooming in" will allow for the sales to appear. Clicking on a sale provides a call-out bubble which enables parcel number link and the ability to see the property details within the TaxSifter web application.


Helpful Hint: Open both TaxSifter and MapSifter before starting any sales search. This will move past the user agreement page and allow the web applications to directly access the specific parcel when navigating between applications.


Our office provides multiple services and information that is available to the public. If you have a question about property in Grant County that is not answered by the information provided here on-line, please contact us.


Our office personnel include the Assessor, the Chief Deputy Assessor, and fifteen other staff. It is our sincere desire to serve and support you in a professional, effective, responsible and courteous manner.


Assessorís Office Personnel:


Phone: (509)754-2011 ext. 2683

Melissa McKnight



ext. 2610

Bobbee Poplawski

Chief Deputy Assessor


ext. 2611

Melissa Olivas

Chief Appraiser


ext. 2624

Amy Perez

Deputy Assessor III


ext. 2641

Carol Rivera

Deputy Assessor Data Entry


ext. 2683

Craig Allen

Deputy Assessor III


ext. 2672

Joyce Harmon

Deputy Assessor III


ext. 2684

Pam Hill

Deputy Assessor Segregation


ext. 2607

Patty Walker

Deputy Assessor Personal Property


ext. 2608

Clayton Johnson



ext. 2690

Matt Hope



ext. 2681

Jacob Nix



ext. 2621

Marie Anna Kooy



ext. 2654

Penny Womack



ext. 2609

Rhonda Gingrich Appraiser   ext. 2648

Jeremie Ritchie



ext. 2657

Rachel Rice

Appraisal Analyst


ext. 2682

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