Query Seattle's SDOT Trees dataset via its ArcGIS REST Feature Service
domain: data-seattlecitygis.opendata.arcgis.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Locate the SDOT Trees layer on Seattle's ArcGIS Hub (SeattleCityGIS::sdot-trees) and open its API/service resources to get the underlying FeatureServer query URL.
Query the layer with standard Esri Feature Service REST parameters: f=json, where=1=1 (or a real predicate), and outFields=* to retrieve attributes.
Paginate large pulls using resultOffset and resultRecordCount, since the layer covers 260,000+ trees maintained by Seattle DOT and Esri servers cap records per call.
Cross-reference with Seattle's separate Tree Canopy raster service (gisdata.seattle.gov, COS/Tree_Canopy MapServer) if canopy-cover context is needed alongside individual tree points.
Reproject returned geometries to WGS84 if your downstream mapping stack expects latitude/longitude rather than the service's native spatial reference.
Known gotchas
This layer only covers SDOT-maintained street trees, not park or private trees — same 'maintenance scope is not a full census' caveat as other municipal tree layers.
Esri Feature Service default per-call record limits (commonly 1,000-2,000) require the offset/pagination pattern above for full extraction.
Species/condition fields are often coded domain values that require the layer's metadata/domains to decode into human-readable labels.
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