Median estimated market value for properties in this county.
AssessorSearch county dataKing County, WA
King County, WA assessor property search and records
Use this county guide to find official assessor property search resources, recorder and deed links, tax records, GIS parcel maps, permits, and property data insights for King County, Washington. Search an address or APN, then jump to official county sources or property tax and value data.
Search a King County address or APN
Official sources
King County assessor, recorder, tax, and parcel map sources
Use this table to find the official county source for assessor property search, recorded documents, property tax, GIS parcel maps, permits, and zoning records.
| Record type | Official source | Notes |
|---|---|---|
| Assessed values | King County Assessor Property Searchkingcounty.gov/en/dept/assessor/buildings-and-property/property-value-and-information/look-up-property-information |
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| Deeds and recorded documents | King County Recorder's Office Landmark Webrecordsearch.kingcounty.gov/LandmarkWeb |
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| Property taxes | King County Property Tax Payment Portalpayment.kingcounty.gov/Home/Index |
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| GIS and parcel maps | King County Parcel Viewergismaps.kingcounty.gov/parcelviewer2/ |
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| Permits and building records | King County Permitting Portal (Accela)aca-prod.accela.com/kingco/Default.aspx |
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| Zoning and land use | King County Property Research and Zoningkingcounty.gov/en/dept/local-services/buildings-property/property-research-and-maps |
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County data
King County tax rates and property values
County and city-level rollups from AssessorSearch indexed property data. Use these values as directional context, then verify parcel-specific details with the official county sources above.
Median assessed value from county assessment records when available.
AssessorSearch county dataMedian annual property tax amount from indexed tax records when available.
AssessorSearch county dataMedian effective property tax rate calculated from annual tax and value fields.
AssessorSearch county dataCity property data
Top city rollups for estimated value, assessed value, property tax rate, and tax amount.
| City | Median estimated value | Median assessed value | Median effective property tax rate | Median tax amount |
|---|---|---|---|---|
| Seattle | $891,564 | $812,000 | 0.97% | $8,583 |
| Bellevue | $1,511,231 | $1,441,000 | 0.72% | $10,872 |
| Renton | $757,993 | $718,000 | 1.03% | $7,768 |
| Kent | $648,846 | $612,000 | 1.03% | $6,504 |
| Kirkland | $1,243,254 | $1,197,000 | 0.84% | $10,325 |
| Auburn | $632,606 | $582,000 | 1.15% | $6,911 |
| Redmond | $1,444,216 | $1,373,000 | 0.84% | $12,148 |
| Federal Way | $605,009 | $562,000 | 0.97% | $5,749 |
| Sammamish | $1,608,208 | $1,555,000 | 0.87% | $13,892 |
| Shoreline | $825,645 | $766,000 | 1.01% | $8,159 |
FAQ
King County property records FAQ
Common questions about assessor, deed, tax, GIS, and permit records.
Where can I search King County property records by address?
Use the official King County Assessor Property Search to search King County property records by address or parcel number. Use AssessorSearch property search as a free, easy-to-use option to search King County by address or APN.
How do I find the owners of King County properties?
Use the official King County Assessor Property Search for county ownership and parcel records when owner names are available online. Use AssessorSearch property search as a free, easy-to-use option to look up King County properties by address or APN.
Where can I verify assessed value in King County?
Use the official King County Assessor Property Search for assessed values, parcel details, exemptions, and property characteristics when those records are available online.
Where can I look up King County property tax bills or payments?
Use the official King County Property Tax Payment Portal for property tax bills, payment history, due dates, or tax collector records.
Where can I find deeds or recorded documents in King County?
Use the official King County Recorder's Office Landmark Web for deeds, mortgages, liens, plats, and other recorded documents. These records are usually separate from assessor property-value records.
Where can I view parcel maps or GIS data in King County?
Use the official King County Parcel Viewer for parcel maps, map layers, boundaries, and GIS context. GIS maps should be treated as reference tools, not legal surveys.
Where can I search permits or zoning in King County?
Use King County Permitting Portal (Accela) for permits and King County Property Research and Zoning for zoning or land-use records. City properties may require city-specific permit or planning portals.
Can I build a list of King County property owners?
Use Affix by AssessorSearch for county property owner lists, filters, exports, skip tracing, and outreach workflows.
Related counties
More Washington property records
Use related county pages when researching nearby property records or comparing official source patterns.