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Now more than ever, trees and forests are a vital component of healthy, livable, and sustainable communities around the globe. The Tree Cities of the World programme is committed to inspiring cities and towns to care for and celebrate their urban tree canopy.

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You must have a staff member, a city department, or a group of citizens who are delegated responsibility for the care of trees within their municipal boundary.

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For a city to be eligible:

The city must have a law or an official policy in place that governs the management of forests and trees. These rules describe how work must be performed— citing best practices or industry standards for tree care and worker safety—where and when they apply, and penalties for noncompliance.

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Your city must have an updated inventory or assessment of the local tree resource so that an effective long-term plan for planting, care, and removal of city trees can be established.

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Your city must have a dedicated annual budget for the routine implementation of the tree management plan.

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Your city must hold an annual celebration of trees to raise awareness among residents and to acknowledge citizens and staff members who carry out the city tree program.

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Recognised Cities | Tree Cities of the World | The Arbor Day Foundation

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21st Century Ordinance Builder for Tree Protection Entry-Level Components | Chicago Region Trees Initiative

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This tool created by the CRTI Trees and Green Infrastructure Work Group helps Illinois residents form the foundation of a 21st century ordinance for tree protection.

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Examples of eligible events:
● An in-person gathering (e.g. community tree planting or festival)
● A virtual event (e.g. webinar or live-streamed tree planting)
● A social media post or campaign
● Mail outreach (e.g. A Right Tree, Right Place educational flier)
● A tree distribution
● Direct, in-person outreach or training (e.g. workshops educating community members about their community trees)

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A programme of:

The Arbor Day Foundation inspires people to plant, nurture, and celebrate trees. Privacy Policy

FAO supports the development of urban and peri-urban forestry actions, projects, and strategic planning tools that promote a sustainable and resilient model for city development around the world. Privacy Policy

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A programme of: The Arbor Day Foundation inspires people to plant, nurture, and celebrate trees. Privacy Policy FAO supports the development of urban and peri-urban forestry actions, projects, and strategic planning tools that promote a sustainable and resilient model for city development around the world. Privacy Policy

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Tree Cities of the World Application Tutorial

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Arizona Urban Tree Map (AZUTM) | Department of Forestry and Fire Management

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The Arizona Urban Tree Map (AZUTM) is part of the Urban Forest Resource Inventories (UFRI), a joint project of the Arizona State Forestry and USDA Forest Service. The main goals of the project are to:

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Arizona Tree Guides, Inventory Guides and Templates 

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Arizona Tree Guides, Inventory Guides and Templates 

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Arizona Tree Guides

Urban tree field guides tailored for volunteers and citizen scientists in Arizona. The guides are split into three of i-Tree Streets climate zones but feel free to mix and match the guides for your community.
i-Tree Streets' economic and environmental tree value analysis are based on reference cities within STRATUM Climate Zones developed by USDA-FS. Not until you upload your data to AZUTM to run the analysis, do you have to decide on a climate zone.

/28/2015 AZUTM Field Guide - Southwest Desert 04
Tree identification guide for select horticultural tree species found in Arizona and listed in i-Tree Streets' Southwest Desert climate zone.

04/28/2015 AZUTM Field Guide - Interior West
Tree identification guide for select horticultural tree species found in Arizona and listed in i-Tree Streets' Interior West climate zone.

04/28/2015 AZUTM Field Guide - North
Tree identification guide for select horticultural tree species found in Arizona and listed in i-Tree Streets' North climate zone.

AZUTM Field Guide - Insects and Diseases 05/21/2015
Guide to common insect and diseases that affect Arizona's horticultural trees.

AZUTM Master Tree Index - 06/01/2015
Master index of tree species found in AZUTM Guides listing their scientific names, common names, species codes, and page numbers.

Tree Inventory Guides and Templates

How-to manuals for tree inventories and template files for communities to get a leg up on their own urban forest inventories. Feel free to modify the template files to your liking. See the "AZUTM - Tree Inventor Instruction Guide" for detailed instructions.

Arizona Urban Tree Canopy Cover Analysis

i-Tree Canopy analysis reports (PDF) for Arizona's largest Cities and Towns. The 2015 analysis reports provide % tree canopy cover and tree benefit estimates for over 97 communities and were used to estimate the average urban tree canopy cover for Arizona's Counties. See reports below or AZUTM Interactive Maps.

The canopy cover estimates should not be taken as an absolutes but as a comparative estimate between Arizona's major towns and cities.

The i-Tree Canopy analysis were based on municipal incorporated areas unless otherwise stated.

Urban = 2010 Census Urban Areas

Intersection = intersection between Census Urban Areas and incoportated areas.

Urban and Community Forestry Documents

Online Resources

Following are links to helpful urban tree inventory related resources:

Mobile Tree Inventory Apps

For volunteer-driven inventories, we continue to search for an affordable smartphone app and web-based data storage service that allows for customized tree inventory and GPS location capture under intermittent network conditions. Here are some partial solutions:

GIS Cloud - commercial online service for creating and managing custom mobile forms and collaborative maps; also collects GPS location, photos, audio, etc.; works offline

i-Tree Mobile Data Collection - free, mobile data collection web application that ties in with i-Tree Streets and Eco; requires constant internet access

Open Data Kit (ODK) - free, open-source tool set for mobile data collection solutions; requires moderate software configuration skills and your own ODK web server

Tree Plotter (Plan-It Geo) - fully featured commercial online service; requires constant internet access

OpenTreeMap.org - commercial crowd-sourcing online service; requires constant internet access

DoForms.com - commercial online service for creating and managing custom mobile forms that can work offline

Disclaimer of Non-endorsement

Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the Arizona Department of Forestry and Fire Management.. The views and opinions of individuals expressed herein do not necessarily state or reflect those of the agency, and shall not be used for advertising or product-endorsement purposes.
In accordance with Federal law and U.S. Department of Agriculture policy, this institution is prohibited from discriminating on the basis of race, color, national origin, sex, age, or disability. (Not all prohibited bases apply to all programs.)

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Urban tree field guides tailored for volunteers and citizen scientists in Arizona. The guides are split into three of i-Tree Streets climate zones but feel free to mix and match the guides for your community. i-Tree Streets' economic and environmental tree value analysis are based on reference cities within STRATUM Climate Zones developed by USDA-FS.

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Vibrant Cities Lab: Urban Forestry Toolkit

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Vibrant Cities Lab: Urban Forestry Toolkit

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The Tree Equity Score will show you these inequities in tree cover and where trees are needed most in your community.

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The story is the same in nearly every city across the United States. With few exceptions, trees are sparse in socioeconomically disadvantaged and neighborhoods of color and more prominent in wealthier, whiter neighborhoods. Redlining policies, dating back to the 1930s, helped lay the groundwork for this inequity.

American Forests is focused on addressing this inequity by focusing resources in neighborhoods of highest need. It's our moral imperative to do so, given how many life-saving and quality of life benefits trees provide people. That is why we are working to create Tree Equity, which is about ensuring that all people experience the benefits of trees. One of the ways we are doing this is with our Tree Equity Score tool. It provides a social-equity-focused narrative, goals and a guide path for building understanding, commitment and action around Tree Equity. It is also free and easy to access.

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The story is the same in nearly every city across the United States. With few exceptions, trees are sparse in socioeconomically disadvantaged and neighborhoods of color and more prominent in wealthier, whiter neighborhoods. Redlining policies, dating back to the 1930s, helped lay the groundwork for this inequity.

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Tree Equity Score Analyzer - Maricopa County

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Tree Equity Score Analyzer - Maricopa County

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Neighborhood- and property-level tools that can help you chart a course toward Tree Equity in Maricopa County.

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Arizona Shade Tree Planting Prioritization Analysis (2017) 

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Arizona Shade Tree Planting Prioritization Analysis (2017) 

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The intent of the Shade Tree Planting Prioritization (STPP) analysis is to:

Rapidly and strategically assess Arizona's urban forest communities to inform Urban and Community Forestry planning

Identify Arizona's underserved cities and communities based on state-wide, best available, and relevant socio-economic and environmental data

Account for a city's commitment to their urban forest (sustainability) as it applies to UCF partnerships and projects

Keep spatial and quantitative analysis simple and transparent

Generate summaries and geospatial products for internal and public dissemination

The analysis and products will inform future DFFM priorities for program delivery and may be used directly by communities for their management needs.

How Can The Prioritization Maps Help Me?

Identify underserved neighborhoods and promote shade tree planting and maintenance

Target and maximize volunteer tree planting and care efforts

Identify potential markets for tree nurseries ("hot" spots)
Identify areas with possibly larger tree maintenance needs ("cool" spots)

Regional Planning Organizations
(RTA, MAG, PAG, etc.)

Support long-term planning initiatives
Aide obtaining funding for specific projects

Products And Services

2017 Shade Tree Planting Prioritization Reportupdated 09/24/2018
Summary of the intent, methodology, and results of the 2017 Shade Tree Planting Prioritization analysis.

2017 Shade Tree Planting Prioritization Atlasupdated 09/24/2018
11" by 17" Atlas of shade tree planting prioritization maps for Arizona's 95 largest cities and towns.

2017 Shade Tree Planting Prioritization Advanced Web Map updated 10/21/2020
Advanced interactive online map of the analysis results.

Turn on and off STPP layers

Switch the basemap between road map, satellite image, topographic map, etc.

Access to STPP sub-index layers:

​Population Density Index

Lack of Canopy Cover Index

Low-Income Index

Traffic Proximity Index

Sustainability Index

Air Quality Index

Heat and Developed Imperviousness Index

​Click on Census Block Group polygons to access attributes.
Note: Only STPP Indexes and attributes denoted with a * are Census Block Group level estimates. All other are city-wide estimates.

2017 Shade Tree Planting Prioritization Simple Web Map updated 03/11/2019
Simple interactive online map of the analysis results.

Population 1 to 1,000
Zoom to: Duncan, Hayden, Jerome, Patagonia, Tusayan, Winkelman,

Population 50,001 to 100,000
Zoom to: Avondale, Buckeye, Casa Grande, Flagstaff, Goodyear, Lake Havasu City, Yuma,

2017 Shade Tree Planting Prioritization GIS Data (hosted by AZGeo Hub) Updated 3/11/2019
GIS data of analysis results (hosted feature service).

Major funding provided by the USDA Forest Service State and Private Forestry Program.

In accordance with Federal law and U.S. Department of Agriculture policy, this institution is prohibited from discriminating on the basis of race, color, national origin, sex, age, or disability. (Not all prohibited bases apply to all programs.)

Use Disclaimer

Use is granted to public agencies, educational institutions, non-profit organizations and private individuals for non-commercial purposes. For commercial use of the Department of Forestry and Fire Management maps and data see Arizona Revised Statutes 39-121.03. The Department makes no warranties, implied or expressed, with respect to the accuracy of and the use of this data for any specific purpose. Users are required to make their own assessment of the data for any specific use.

Disclaimer Of Non-Endorsement

References herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the Department or USDA Forest Service. The views and opinions of individuals expressed herein do not necessarily state or reflect those of the Department or USDA Forest Service, and shall not be used for advertising or product-endorsement purposes.

Geospatial Disclaimer

Property line representations and/or any other type of boundary, linear or point location representations contained within this data or displayed within this product are approximate, and cannot be used for authoritative location purposes. Users should independently research, investigate and verify all information before relying on it or using it in the preparation of legal documents. Legally-defensible property boundaries can only be established by state-registered professional land surveyors. A list of Arizona Registered Land Surveyors is available at btr.az.gov.

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The intent of the Shade Tree Planting Prioritization (STPP) analysis is to: Rapidly and strategically assess Arizona's urban forest communities to inform Urban and Community Forestry planning Identify Arizona's underserved cities and communities based on state-wide, best available, and relevant socio-economic and environmental data Account for a city's commitment to

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Applications are due by December 31st each year.

National Arbor Day is celebrated on the last Friday of April, and Arizona typically celebrates 1 week earlier. However, your community can celebrate and designate ANY day of the year as Arbor Day! Some communities celebrate in the fall, since that is more optimal time to plant trees in the desert.

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The AZ DFFM Urban and Community Forestry team is the state coordinator for this Arbor Day Foundation Program. Please reach out to us with any questions about the program, eligibility, and/or participation in Arizona! Contact Timara Crichlow, Urban Forestry Specialist at tchrichlow@dffm.az.gov, 480.769.4184.

If you have issues with the application portal, it is best that you reach out directly to the Arbor Day Foundation by emailing treecity@arborday.org or submitting a ticket through this portal.