City of Tacoma GISWetlands are areas that are inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Maps are based on known wetlands verified via site inspection and permits, filled and non-jurisdictional wetlands based on permit records and/or site reviews, high probability areas are generally mapped based on aerial vegetation and contours.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/844d7ae72973465c90d15ded0ab10af9_0engTacoma Open DataPublicWetlands (Tacoma) [Washington (State)--Tacoma]Web servicesWashington (State)--TacomaWashington (State)Last Modified: 2026-01-08