King County Genealogy Search (Washington)

Perform a free King County, WA public genealogy records search, including genealogy ancestry histories, family search histories, and family trees.

The King County Genealogy Search (Washington) links below open in a new window and take you to third party websites that provide access to King County public records. Editors frequently monitor and verify these resources on a routine basis.

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King County Auditor Marriage Records Search King County Auditor marriage records by groom, bride or year.

King County Birth Certificates & Records View King County, Washington birth certificate information, including required identification and fees for certified copy requests.

King County Birth Records Search King County birth records by mother, father, child, gender or date of birth.

King County Death Certificates & Records Find King County, Washington death records, and learn about the fees and process for requesting copies of certified death certificates.

King County Genealogy Records View King County genealogy records, including immigration, birth, census and marriage records.

King County Library System Genealogy Records View King County Library System genealogy information including links to genealogy resources such as FamilySearch and Heritage Quest.

King County Marriage Certificates & Records View King County, Washington marriage certificate and license requirements, including fees for certified marriage record copy requests.

King County Vital Records View King County, Washington vital records information, including birth, death, marriage, and divorce certificate copy requests, related fees, and identification requirements.

Find King County Genealogy Records

King County Genealogy Records are kept by a number of different government agencies and departments in King County, Washington. The U.S. Census Bureau maintains Genealogy Records in the form of census data. Other municipal and Washington State offices also maintain records that are useful for tracing lineage. King County Vital Records Offices hold birth, marriage, and death records that date back hundreds of years.

Learn about Genealogy Records, including:
  • Where to get free Genealogy Records online
  • How to perform King County genealogy research
  • Which government offices provide access to vital records
  • What King County genealogy records are public records
  • What are the best sources of Genealogy Records