Island County GISFrom 1999 thru March 30, 2015, records show a total of 28 ZAA (Zoning Amendments, e.g. County-approved zoning changes) decisions were issued. It is not known what, if any, processes or procedures existed to update the Zoning layer when a ZAA was approved. It is likely that some, but not all, of these changes are reflected in the Zoning Layer. It is possible that none of these changes are correctly reflected in the Zoning layer. Annexations since 1999 may not be accurately reflected in this layer.It is not known if any double-checking or quality-control process has ever been done between the Official Zoning Atlases kept in the Planning Department and the Zoning layer. Experience has shown very little inconsistency between the Zoning Atlases and the Zoning layer during work in the Planning Department. It expected that the accuracy rate between the Zoning layer and Zoning Atlases is greater than 95%. This layer is accurate to the parcel level. Some parcels may be slightly shifted. Any shifting that has occurred is expected to be less than 15 feet in any direction.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/598955654135421bb8c8eafdd84a1798_0engIsland County Open Data PortalPublicZoning [Washington (State)--Island County]Web servicesWashington (State)--Island CountyWashington (State)Last Modified: 2026-01-08