Puget Sound Regional CouncilCensus block boundaries for 2000 Technical Documentation: https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tiger2k/tiger2k.pdfArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/664c5a7ada4a4daabba52e2192fdc7f4_0engPuget Sound Regional Council Data PortalPublicCensus Blocks 2000 [Washington (State)--Puget Sound Region]Web servicesWashington (State)--Puget Sound RegionWashington (State)2000