John Wilson, King County Assessor
John is serving his second term after winning reelection in 2019. He's earned praise as one of King County's most innovative leaders.
Among John's accomplishments as Assessor:
- He led the office in introducing the Taxpayer Transparency Tool. It lets you see how ballot measures will impact your property taxes.
- He worked with community organizations to help pass property tax relief for senior citizens. Thousands of new applicants can stay in their homes as a result.
- He helped pass laws making it easier to fix errors and reimburse taxpayers for overpayments.
- He's a leader in identifying surplus public and vacant private property. Both provide innovative short and long-term housing solutions for homeless residents.
John served as Chief Deputy Assessor for four years. He gained a reputation for developing technology that enhances customer service and reduces costs. He also rebuilt the Assessor's website, which led to a tenfold increase in monthly pageviews.
As a member of King County's Information Technology staff, John led an effort to build a culture of innovation among county employees and departments.
John's earlier career included handling communications for the late former Congressman Al Swift. He also served as communications director and chief of staff to former King County Executive Ron Sims. Under Sims, John helped drive projects on freight mobility and the expansion of parks and open space.
John is also an experienced public affairs consultant. He worked with the American Civil Liberties Union to reform Washington's marijuana laws. He also worked with the state and Whatcom County to identify economic opportunities during the 2010 Winter Olympic Games in Vancouver, B.C.
A former journalist for KING 5 News, John is the recipient of the DuPont Columbia Award. His work appeared on KING, ABC, NBC, and CNN. He also used to report for The Seattle Times and Seattle Weekly.
John is the father of four adult children. He enjoys reading, cooking, jazz, hiking, and traveling.
Jeff Darrow, Residential Division Director
Jeff has been with the Assessor’s office for two decades. He has more than 25 years of experience as a real estate appraiser and holds a Bachelor of Arts in marketing from Western Washington University.
Jeff directs the Residential Division, which is responsible for inspecting and valuing all residential parcels in King County.
Hoang Nguyen, Information Services Division Director
Hoang has been with the Assessor's office for 16 years. Hoang has a Bachelor of Science in computer engineering. Hoang has won awards from the National Association of Counties and the International Association of Assessing Officers.
Hoang directs the Information Services Division, which supports the web portal, smartphone apps, and the Computer-Assisted Mass Appraisal (CAMA) system.
Mindy Tiangson, Accounting Division Director
Mindy has more than 30 years of experience with the Assessor's office. She's contributed work for residential and commercial appraisals and public information. She holds a certified real estate appraiser's license.
Mindy directs the Accounting Division, which processes about 700,000 property valuations each year. They also review and approve senior, disability, and current-use exemptions.