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King County Tax Parcel Polygons with select City of Seattle geographic overlays

Published by City of Seattle ArcGIS Online | City of Seattle | Catalog Last Checked: August 01, 2026 at 02:49 PM | Dataset Last Updated: March 25, 2026
King County Assessor Tax Parcel polygons with selected King County Assessor (KCA) data and City of Seattle spatial overlay data to support land use planning functions. Displayed as all intersecting polygons from input layers, including the rights-of-way.King County Assessor data has been summarized to the tax parcel identification number (PIN) and City of Seattle spatial overlay data has been assigned through geographic overlay processes.  This data is updated quarterly and is used to support the analytical and reporting functions of the City of Seattle long-range and policy planning office.The spatial overlays include:City of Seattle Land Use ZoningShoreline (to identify water/land portions of parcels)Comprehensive Plan Regional and Urban CentersCity Parks BoundariesCensus Blocks 2010/2020City LandmarksPublic Ownership (as identified through taxpayer name)General (10)/Planning (20) Categories of Existing Land Use (may not match uses described in the City of Seattle Municipal Code)This layer represents the intersections of all the polygons listed above, therefore the tax parcel polygon may be represented by separate polygons if split by another spatial layer. Please use caution when using the tax assessor attribute data from this layer.

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