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SCAG is the Southern California Association of Governments.  SCAG is the nation’s largest metropolitan planning organization, representing six counties, 191 cities and more than 19 million residents. SCAG undertakes a variety of planning and policy initiatives to encourage a more sustainable Southern California now and in the future.


Mapping & GIS at SCAG

Their website (click here) provides users with access to spatial data available from the website or that may be ordered through the website. You will also be able to find an Interactive Atlas, which permit users to view, print, and download interactive maps. You will also be able to find a list of existing maps that are available from SCAG publications or have been created for other planning activities.

Many of the digital boundary files and layers that SCAG has developed may be requested.

Please contact Tom Vo at (213) 236-1930 or email vo@scag.ca.gov.

Using GIS Data on this site

GIS Data downloaded from this site generally requires GIS software to view. Click here for a list of GIS Data Viewers

GIS data available on this website is provided AS IS - please read the GIS Data Portal Terms of Use

Data Field Descriptions


  • Electronic Map Gallery
  • Interactive Atlas
  • California Land Opportunities Tracking System (CALOTS)
  • Map Collaborator
  • Regional Transportation Monitoring & Information System (RTMIS)

GIS Source Information
Database Name:
Feature Class Name:
Feature Dataset Name (if applicable):
Reference Date:
Accuracy: TIGER
Update Frequency: Unknown
Access Constraints:None

Contact Information
Tom Vo
Associate Regional Planner
Southern California Association of Governments
Research and Analysis
818 W. Seventh Street
12th Floor
Los Angeles, CA 90017
(213) 236-1930

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