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Portland is a Sanctuary City

Tree Inventory Project

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Urban Forestry staff measuring diameter of a street tree.
The Tree Inventory Project collects data on street trees and park trees. By measuring, mapping, and identifying public trees across Portland, we are able to better manage our urban forest.
On this page

Since in 2010, PP&R has partnered with communities to measure, map, and identify nearly 280,000 street and park trees. Information and tools from this project help professionals and community members protect, preserve, and grow our urban forest.  


Street Tree Inventory

Urban Forestry staff completed a re-inventory of street trees in 2024, collecting data on 252,180 trees in citywide rights-of-way. This work was part of a three-year project to update the data from Portland's first complete Street Tree Inventory which occurred from 2010-2016. 

In Fall 2024, Urban Forestry conducted a sample survey which estimated approximately 81,000 trees in mostly naturalized rights-of-way not inventoried by the Street Tree Inventory project. Combining data from the Street Tree Inventory and the sample survey, there are an estimated 330,000 street trees in the City of Portland.

Learn more about our methods and explore tree ID resources on our Street Tree Inventory Resources page.


Maps, Reports, and Data

Use the Street Tree Inventory map to find out what trees are in your park or on your block, or search by address, species, or even identify nearby trees in your neighborhood on our mobile-friendly Tree Inventory Project Web Map.

Screenshot of Tree Inventory Web Map with tree points symbolized with different colors based on genus.
Screenshot of the Tree Inventory Web Map

Reports

Read the Street Tree Inventory Report for the results of the Street Tree Inventory project completed between 2022-2024. 

Explore Street Tree Inventory data with an interactive dashboard

Explore thematic neighborhood maps created with Street Tree Inventory data. 


Read our report from the first Street Tree Inventory (2010-2016). This report includes detailed information about nearly 220,000 street trees across Portland, including information about the methods used for this study:


Learn about trees our parks with this interesting web-based storymap:

Park Tree Inventory Report 

Download the data

Download the Street Tree Inventory 2.0 (2022-2024) Excel workbook with raw data here:

ArcGIS shapefiles and CSV files for Street Tree Inventory 2.0 (2022-2024) available here: 

See past presentations on Tree Inventory and other projects on our Tree Summit page:


Virtual Tours of Portland's Parks

In 2019, Urban Forestry and our dedicated volunteers finished inventorying every tree in 174 parks! Take an up-close look at what we found in selected parks by clicking the links below.

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