What is TreeMapLA?

TreeMapLA is an ambitious collaboration of nonprofits, local governments, businesses -- and you -- to map every tree in Greater Los Angeles. By entering every tree’s location, species and current size, and updating its needs, we create a powerful tool to learn about our urban forest and its value, including specific environmental and economic benefits.

This information will help us to manage the well-being of our region’s urban forest and make our city more livable: shadier, cleaner, safer and more beautiful, and better able to meet climate change impacts. Users of this information include government agencies, arborists, landscape architects, planners, students, civic organizations, and everyday citizens.

With TreeMapLA, concerned citizens and tree enthusiasts throughout Los Angeles can learn, communicate, and take action on behalf of the trees around us.

With the Rainwater Harvesting layer, we can measure the amount of rain that – through installing rain gardens, rain barrels and cisterns, and removing turf and concrete -- we are adding to our critically needed local water supply.

How to use TreeMapLA?

Anyone can use TreeMapLA – it just requires setting up an account. Then you can:

  1. Map trees so we can get a more accurate understanding of the many benefits of our region’s trees.
  2. Use tree alerts so others can help trees in need of water, care…even fruit harvesting!
  3. Explore trees to learn more about the trees and the urban forest.
  4. Map watershed features to be part of the solution to Los Angeles’ water crisis.

Go to TreeMapLA!


TreeMapLA supported by


The mission of the California Department of Forestry and Fire Protection's Urban Forestry Program is to develop a regional and statewide cooperative effort to advance the development of sustainable urban and community forests. The Urban Forestry Program offers grants of over $1 million dollars a year to plant trees and over $2.5 million for related projects in urban communities throughout California. Seven Urban Forestry Field Specialists provide expert support to communities, non-profit groups and other municipal governments to create and maintain sustainable urban forests.