Kelly Mauck

Kelly’s commitment to public service began long before he ever sought elected office.

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After moving to Oak Harbor in 1993, Kelly immediately began volunteering as a Reserve Deputy with the Island County Sheriff’s Office. He was later hired full-time by the Skagit County Sheriff’s Office before returning to Island County in 1996 as a Patrol Deputy serving the citizens of Whidbey and Camano Island.

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In 1999, Kelly’s life changed forever when his sister, a Kansas corrections officer, was killed in a car accident, leaving behind a 5-year-old daughter. Kelly adopted and raised his niece as his own — an experience that deeply shaped his values and reinforced a lifelong belief in service, responsibility, and showing up when people need you.

Kelly advanced through the ranks of the Sheriff’s Office and was appointed Undersheriff in 2007 at just 35 years old, becoming the youngest and ultimately the longest-serving Undersheriff in Island County history. During his tenure, he helped lead a complex public agency of nearly 70 employees and gained extensive experience in budgeting, personnel, labor relations, policy development, public outreach, risk management, strategic planning, and organizational leadership.

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Those experiences formed Kelly’s approach to leadership: set clear expectations, build strong teams, communicate openly, make informed decisions, and remain focused on results.

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Long before seeking the office of Assessor, Kelly intentionally pursued additional education and real-world experience directly connected to valuation, construction, and real estate. He became a licensed real estate broker, licensed home inspector, state-certified building inspector, and general contractor before later earning accreditation through the Washington State Department of Revenue as an accredited appraiser.

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That combination of leadership experience and hands-on industry knowledge provided a unique foundation for serving as Assessor — bringing together practical understanding of construction, property conditions, market behavior, land valuation, and the responsibility of managing a modern public office.

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Since taking office as Island County Assessor, Kelly has focused on strengthening transparency, improving consistency, modernizing operations, and building a culture of professionalism and public service.

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Under Kelly’s leadership, the office has improved public access to information, strengthened training and valuation standards, modernized tools and internal processes, expanded taxpayer outreach, reduced appeals, and maintained responsible stewardship of public resources.

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Kelly believes effective leadership means supporting employees while maintaining accountability, investing in professional development, setting high expectations, and creating an environment where talented public servants can succeed. He also believes leadership requires the willingness to make difficult decisions when necessary and always remain focused on the long-term success of the organization and the taxpayers it serves.

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Kelly is proud of the dedicated team serving Island County taxpayers and believes the strongest public organizations are built through trust, collaboration, accountability, and continuous improvement.

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As Assessor, Kelly remains committed to fair and accurate valuations, transparency, accessibility, strong public stewardship, and treating every taxpayer with professionalism and respect. He also remains committed to expanding awareness and access to property tax relief programs for seniors, disabled veterans, and those who qualify.

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Kelly believes public trust is earned through integrity, accountability, and consistently delivering results.

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"Serving the people of Island County has been an honor, and I respectfully ask for the opportunity to continue building on that progress as your Island County Assessor."

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— Kelly T. Mauck