ZIP 98059, WA property records
As of September 2026, ZIP 98059, WA has 12,313 parcels on record, with a median assessed value of $896,000 and a median year built of 1991, compiled from King County assessor, treasurer, permit, FEMA, and DNR records aggregated by VetTheHome. As of September 2026, 5 of those 12,313 parcels (0.0%) sit within a FEMA Special Flood Hazard Area, per King County GIS and FEMA flood records aggregated by VetTheHome.
Updated September 2026 · refreshed weekly
Search an address in 98059
ZIP 98059 by the numbers
Computed 9/7/2026 from county assessor, treasurer, permit, FEMA, and DNR records.
What the public records show
In the 12 months through September 2026, 357 properties in ZIP 98059 changed hands at a median recorded sale price of $1,070,000, and 424 building permits were filed, per King County records. As of September 2026, 4,823 parcels in ZIP 98059 (39%) rely on on-site septic systems rather than municipal sewer, per King County parcel records aggregated by VetTheHome. 7 (0.1%) of parcels in ZIP 98059 sit in high liquefaction-susceptibility zones mapped by the Washington State DNR. As of September 2026, 183 parcels in ZIP 98059 carried an unpaid property-tax balance with the King County Treasurer, per records aggregated by VetTheHome. Every figure here is compiled from public records and refreshed weekly; search any ZIP 98059 address below for parcel-level permit history, tax breakdown, flood and seismic hazards, and septic status.
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