Snohomish County AssessorThis dataset is a compilation of municipal boundaries for incorporated cities in Snohomish County, Washington. The boundaries were compiled from muni_annex dataset that tracks all municipal annexations, dissolving the active annexations together to create the current city boundaries. Spatial registration conforms to features in the Snohomish County parcel data set.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/c6302833fafd44b0a62d55ec34a63a2d_0engSnohomish County Open Data PortalPublicCity Boundaries [Washington (State)--Snohomish County]Web servicesWashington (State)--Snohomish CountyWashington (State)Last Modified: 2025-12-04