City of Portland, OregonHistoric landmarks are individual resources, such as buildings, sites, trees, statues, signs, or other objects that are significant for their historical, cultural, archaeological, or architectural merit. They have one or more characteristics of citywide, statewide or national significance. Portland has approximately 500 historic landmarks. They tend to be located in older inner-city areas and along main streets and former streetcar lines. They range from modest single-family homes to downtown skyscrapers, warehouses, and parks. There are two types of historic landmark: Local Landmarks and National Register properties. https://www.portlandoregon.gov/bps/article/132551#historic_landmarks -- Additional Information: Category: Zoning Code Purpose: Mapping Portland Historic Landmarks. Update Frequency: As Needed -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=53585ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/54a529f164d348bb8b13a97cf85243ba_131engPortlandMaps Open DataPublicHistoric Landmarks [Oregon--Portland]Web servicesOregon--PortlandOregonLast Modified: 2025-10-15