About the Assessor

The Mission Statement in the Assessor’s Office identifies Dianne Dorey’s expectations of her office’s work: "The mission of the Lewis County Assessor’s Office is to appraise all property equally and fairly, maintaining accurate assessment information for taxation purposes, while being courteous and professional to all Lewis County taxpayers."

Dianne Dorey, the incumbent Lewis County Assessor, took office in March, 1998, and is the 22nd Assessor to serve since 1850. She has been employed in the Lewis County Assessor’s Office since July 7, 1975 and has worked in most aspects of the office prior to being appointed in 1998.

Dianne states, "As your County Assessor, my goals are to educate the public in property taxation, participate in statewide legislation to improve the taxation system, install technology to improve our service to the public and give quality customer service on-line as well as in the office."

Lewis County converted their Property Tax Assessment & Collection software to Ascend in 1998. Assessor, Dianne Dorey helped form an Ascend User's Group and later served as that group's president.

Dianne is past president of the Washington State Association of County Assessors (WSACA), an affiliate organization of Washington Association of County Officials (WACO). In 2015, Dianne was elected President of WSACA for a second time in her career, an honor only one other Assessor in Washington State has had. Dianne has served on the Assessor’s Legislative Committee every year except for the year of her presidency in the association. Dianne currently holds the office of President for the Washington Association of County Officials (WACO) and was installed as that organization's President in October, 2018.  Dianne travels to Olympia during Legislative sessions to regularly testify on the taxpayer’s behalf on issues that affect your Lewis County property.

A lifetime Lewis County resident, Dianne was raised in Pe Ell. She has three grown children. Dianne and her late husband, Stephen, were foster parents for more than 125 sons in Lewis County beginning in 1990.

As a citizen, Dianne has been an active part of the volunteer community. She has served on the Board of Directors for United Way of Lewis County since 1999 and has served as their Treasurer; served as Treasurer for the Lewis County Foster Parent Association (LCFPA) and the Foster Parent’s Association of Washington State (FPAWS); is a Chamber Ambassador and served as that organization’s Chair for two years; is the past Vice President of the Lewis County Republican Central Committee; is a Precinct Committee Officer for Centralia #6; and was the Appearance Coordinator for Miss Lewis County and served on their board.