ZIP 98030, WA property records
As of September 2026, ZIP 98030, WA has 7,607 parcels on record, with a median assessed value of $624,000 and a median year built of 1988, compiled from King County assessor, treasurer, permit, FEMA, and DNR records aggregated by VetTheHome. As of September 2026, 13 of those 7,607 parcels (0.2%) 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 98030
ZIP 98030 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, 197 properties in ZIP 98030 changed hands at a median recorded sale price of $670,000, and 0 building permits were filed, per King County records. As of September 2026, 677 parcels in ZIP 98030 (8.9%) rely on on-site septic systems rather than municipal sewer, per King County parcel records aggregated by VetTheHome. 122 (1.6%) of parcels in ZIP 98030 sit in high liquefaction-susceptibility zones mapped by the Washington State DNR. As of September 2026, 128 parcels in ZIP 98030 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 98030 address below for parcel-level permit history, tax breakdown, flood and seismic hazards, and septic status.
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