September 2015
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LA County GIS Day


What is GIS Day?

GIS Day is celebrated nationally as part of National Geography Awareness Week.  Click here for more information.

LA County’s GIS Day is free to attend both for the public and presenters, supported by County departments and funded by the County’s enterprise GIS Program.  We invite you to join us to learn more about how the County, government agencies, private companies, educational institutions, and non-profit organizations use Geographic Information Systems (GIS) in  emergency response, social services and administration to make life better in Los Angeles County.

The theme for GIS Day 2014 is  “The Power of Where” – since location information is a powerful tool to provide better services to the residents of the County.  

Important Documents and links (documents updated November 18th, 2014)


When and where is the event?

GIS Day will once again be at Olive Court at Grand Park, where it all started.

Wednesday, November 19th, 2014
9:00am to 3:00pm
Los Angeles County Grand Park, Olive Court
200 N. Grand Avenue
Los Angeles, CA 90012

Click here to add to your calendar (Los Angeles County GIS Day.ics)

Click here to see a map

What is GIS?

gisdaybannerGeographic Information Systems (GIS) are powerful software technologies that allow vast amounts of information to be linked to geographic locations.  Using the concept of an “electronic” or digital map, GIS records, stores, and analyzes multiple layers of spatial data and relates this data to locations of interest (e.g., communities, neighborhoods and people that live there).  These layers contain data in the form of points (e.g., addresses, locations, etc.), lines (e.g., streets, highways, etc.), polygons (e.g., areas, political jurisdictions, etc.) and images that can be viewed in various combinations to identify and display underlying spatial relationships.

Who is our audience?

GIS Day is a chance for GIS staff, students, and residents from around the County to share what they are doing with GIS, make connections, and to reach out to the public and to other using GIS technologies.  We invite government  departments, cities, and agnencies, along with colleges, and private vendors to showcase their programs and capabilities to folks who want to learn more.  Our audience varies in its understanding of GIS, so we are looking to illustrate that the use and value of GIS are limited only by imagination.

Click here for a GIS Day video made after our 2009 event.

GIS Day Cake

This year we will be celebrating GIS Day with a cake that will be served after GIS Day concludes at 2:30.


We went through two sheets!


Last year’s cake cutting








GIS Day Sponsors

gisday2013_thank_you_sponsorsOur sponsors will be recognized here; as well as at the event.  Thanks again to our sponsors that made this possible – click here.


Other questions?

Please contact Mark Greninger by phone (213 253-5624) or email ( with other questions or issues. We look forward to your participation in this event.