ParcelioKing County, Washington: parcel data and property records
749,194 King County parcels on one searchable map: owner of record and mailing address, assessed and appraised values and recorded sales, plus lot boundaries and location. Screen by absentee ownership, acreage, year built and owner tenure.
What the data covers
These bars show real field-by-field coverage for King County in our database, so you know exactly what you are getting before you search. Numbers refresh as the county publishes new records.
Not held for King County: vacancy. Those fields are carried where the county publishes them.
Most recent recorded sale on file: 2026-10-28.
Areas covered
Parcel counts by place, largest first: Seattle (247,423), Bellevue (46,874), Renton (44,617), Kent (40,103), Kirkland (34,836).
Recent sales
33,282 King County parcels have a recorded sale dated since November 2025. Across 21,149 priced sales, with a deed recorded on several parcels counted once, the median price was $850,000 and the middle half sold between $590,000 and $1,360,000.
Nearest counties
- Pierce County: about 29 mi away, 328,834 parcels
- Snohomish County: about 42 mi away, 314,013 parcels
- Kitsap County: about 47 mi away, 116,900 parcels
- Thurston County: about 52 mi away, 123,568 parcels
- Kittitas County: about 55 mi away, 38,172 parcels
Search King County parcels
The map is free to browse - parcel lines, boundaries, and location. Owner of record, assessed values, recorded sales, year built and the full parcel report come with a plan that costs less than one hour of a title runner's time.
Explore the King County map See plans
Common questions
How many parcels are in King County, Washington?
Parcelio carries 749,194 parcel records for King County, Washington, with owner information on 98 percent of them.
Can I find out who owns a property in King County?
Yes. Search by owner name, address, or parcel number to pull the record: owner of record and mailing address, assessed values, recorded sales, year built and lot lines on the map. Sale records here currently run through 2026-10-28.
How do I find vacant land or absentee owners in King County?
We do not hold vacancy data for King County yet, so this filter has nothing to match there. Vacancy filters work in the counties where we hold the field. King County does have owner mailing state: 22,925 parcels have an owner mailing address outside Washington.
Can I search King County by lot size or acreage?
Yes. Acreage is on 85 percent of King County parcels, mapped from the parcel boundary, and the advanced search filters on it directly - set a minimum and maximum to pull every tract in that range, then stack vacancy or absentee ownership on top.