ZIP 98178, WA property records
As of November 2026, ZIP 98178, WA has 8,144 parcels on record, with a median assessed value of $618,000 and a median year built of 1954, compiled from King County assessor, treasurer, permit, FEMA, and DNR records aggregated by VetTheHome. As of November 2026, 1 of those 8,144 parcels (0.0%) sit within a FEMA Special Flood Hazard Area, per King County GIS and FEMA flood records aggregated by VetTheHome.
Updated November 2026 · refreshed weekly
Search an address in 98178
ZIP 98178 by the numbers
Computed 11/9/2026 from county assessor, treasurer, permit, FEMA, and DNR records.
What the public records show
In the 12 months through November 2026, 248 properties in ZIP 98178 changed hands at a median recorded sale price of $642,500, and 151 building permits were filed, per King County records. As of November 2026, 774 parcels in ZIP 98178 (9.5%) rely on on-site septic systems rather than municipal sewer, per King County parcel records aggregated by VetTheHome. 666 (8.2%) of parcels in ZIP 98178 sit in high liquefaction-susceptibility zones mapped by the Washington State DNR. As of November 2026, 228 parcels in ZIP 98178 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 98178 address below for parcel-level permit history, tax breakdown, flood and seismic hazards, and septic status.
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