Location guide · King County, WA
Find a property owner in King County, Washington
Looking up who owns a King County property — the county seat is Seattle — takes one of two starting points: the official county property appraiser or assessor website, or a single-screen owner-data tool that resolves the address directly to the verified owner with phones (DNC flagged) and emails. For a single one-off lookup, the county records site is the no-charge path. For a list of King County addresses, a tool that handles every address in one pass is materially faster.
Try the free address lookup on any King County property
Paste any address in King County into our free address lookup tool and see the verified owner name plus phones and emails returned in seconds. No account, no card.
Look up any King County address
What's on a King County property record
- The recorded owner name (person or LLC)
- The mailing address (often different from the property location for absentee owners)
- Assessed value and tax history
- Property characteristics (lot size, year built where applicable, square footage)
- A link to the recorded deed in most counties
The county portal does not include the owner's phone number or email. To actually reach them, run the owner name + mailing address through an owner-data tool, or check consumer-records sites manually for one-offs.
Common questions
How do I find the owner of a property in King County?
The King County property appraiser or assessor website publishes the recorded owner name and mailing address for every property in the county at no charge. For a list of addresses, an owner-data tool resolves each one directly to the verified owner with phones (DNC flagged) and emails.
Where do I find King County property records?
Through the official King County tax assessor or property appraiser website. Search the county name + "property records" or "tax assessor" to find the official portal. Records include the recorded owner, mailing address, assessed value, tax history, and a link to the recorded deed in most counties.
Is it legal to look up property owners in King County?
Yes — property ownership records are public information in every Washington county. Contacting the owner is governed by the federal TCPA, the national Do Not Call registry, and any Washington-specific layers. Use a tool that flags DNC and TCPA-litigator records before outbound contact.