King County Mortgage Refi property data.
King County (county seat: Seattle) is the most populous county in Washington, with 2,287,171 residents centered on Seattle and the Puget Sound technology corridor. Sustained demand has driven the median owner-occupied home value to $859,900 (ACS 2020-2024), among the highest in the country, while 55.4% of occupied housing units are owner-occupied.
King County, WA
See King County owners before you buy.
A live sample from the county source — search by owner name, address, or APN. The full mortgage refinance list ships with owner, mailing, parcel detail, and lineage on every record.
Loading King County parcels…
Get the full dataset| APN | Owner | Address | Land use | Year | Assessed value |
|---|---|---|---|---|---|
Get the King County mortgage refinance list
The complete county file — owner, mailing, assessor value, absentee flag, full lineage — priced per record.
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What's in the dataset.
Built for Mortgage brokers & lenders.
Equity-rich and free-and-clear King County owners ranked by tappable headroom — push your book against the API and get scored matches back. High equity, free-and-clear status, ownership tenure, and rate delta — ranked by how much there is to tap.