Washington Dept. of RevenueWashington State incorporated cities, depicted as polygons. Attributes include Washington State Department of Revenue Sales and Use Tax Location Codes. Boundaries and location codes are updated 3 times a calendar year and are based upon annexation and change documents received from the various municipalities and other authoritative sources. This layer is intended for use in process with other layers to identify Sales and Use Tax Location Codes and associate them with geocoded address ranges.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/69fcb668dc8d49ea8010b6e33e42a13a_0engState of Washington Geospatial Open Data PortalPublicCity Boundaries [Washington (State)]Web servicesWashington (State)Last Modified: 2025-07-01