Washington State Department of Natural ResourcesWashington State County Boundaries including Department of Natural Resources (DNR) county codes. This data is created from the WA Public Land Survey source data maintained by the DNR. WA County Boundaries MetadataArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/12712f465fc44fb58328c6e0255ca27e_11engState of Washington Geospatial Open Data PortalPublicWA County Boundaries [Washington (State)]Web servicesWashington (State)Last Modified: 2025-08-25