Washington, King County

Mercer Island, Washington Public Records

Find the right official office in Mercer Island. Court cases, police reports, property records, vital records and city records, each linked to the agency that keeps them, with addresses and phone numbers.

Official sources first Free directory Links checked Sep. 9, 2026 Mobile friendly
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Most requested Mercer Island records

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Showing 12 official sources

Official

Police & jail

Find An Offender Statewide

Washington State Department of Corrections Mailing Address: Post Office Box 41100, Mail Stop 41100 Olympia, Washington 98504-1100 Physical Address: 7345 Linderson Way SW Tumwater, WA 98501-6504

  Official Government Resourcesdoc.wa.gov
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Official

Property records

City of Mercer Island

Directory of Mercer Island city records and information 9611 SE 36th Street Mercer Island, WA 98040 Phone: 206-275-7793

  Official Government Resourcesmercergov.org
Open official site City of Mercer Island
Official

Property records

Mercer Island Library

Reference materials and research assistance 4400 88th Ave SE Mercer Island, WA 98040 Phone: (206) 236-3537

  Official Government Resourceskcls.org
Open official site Mercer Island Library

Local record guide

About public records in Mercer Island

Useful local context without burying the official record links above.

Local profile

Mercer Island at a glance

County
King County
County seat
Seattle
Population
25,464
King County population
2,269,675
Local records
City of Mercer Island
ZIP codes
98040

About Mercer Island public records

Mercer Island public records are kept by the offices listed above. Start with the office that created the record.

Residents of Mercer Island cast their ballots through the King County Elections office, located at 919 SW Grady Way, Renton, WA 98057. The office can be reached at 206-296-8683, and their website is kingcounty.gov/depts/elections.aspx.

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Mercer Island public-records FAQs

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How do I register to vote in Mercer Island, Washington?

To register to vote in Mercer Island, Washington, residents can register online through the Washington Secretary of State's website, by mail, or in person at the King County elections office. Washington requires voters to be U.S. citizens, at least 18 years old by Election Day, and residents of the state. The registration deadline is typically 30 days before an election. Voters can verify their registration status and find polling locations through the Washington Secretary of State's voter lookup tool. For local municipal elections in Mercer Island, contact the King County Clerk's office for schedules and ballot information.

How do I look up property records in Mercer Island, Washington?

Residents of Mercer Island seeking public records can turn to the Washington State Archives and Genealogy website, which provides access to a wide range of historical and current documents related to the city. This includes property records, land records, and assessor information that can be invaluable for those researching the history and development of the area. The City of Mercer Island's official website hosts a dedicated section for the City Clerk, where residents can find information on various public records and how to obtain them.

How do I get a birth or death certificate in Mercer Island, Washington?

For those in need of vital records, the Washington State Department of Health offers a full online portal for accessing birth certificates, death records, and marriage licenses for Mercer Island residents. This resource is particularly useful for people conducting genealogical research or seeking to obtain official documentation related to important life events. The Mercer Island Washington Vital Records website provides detailed instructions and contact information to guide users through the process of requesting and obtaining these critical documents.

How do I find business license records in Mercer Island, Washington?

Mercer Island's thriving local economy is supported by a diverse range of businesses, from professional services to retail establishments. The City of Mercer Island's website features a dedicated section for the City Clerk, where entrepreneurs and business owners can find information on obtaining the necessary licenses, permits, and zoning approvals to operate within the community. This resource is invaluable for people looking to start, expand, or relocate a business in the Mercer Island area.

Same county

Nearby King County cities

Use the city page when a record was created by a municipal police department or city office; use the county page for courts, deeds, vital records and jail custody.