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Airport Land Use Commission (ALUC) layers

Airport Land Use Commissions (ALUC) have been established for all counties with public use airports within the state of California. ALUCs are formed with the specific intent of implementing state law (Public Utilities Code) regarding airports and surrounding land use compatibility. With limited exceptions, an Airport Land Use Commission (ALUC) is required by California law […]

Reorganization No. 2018-03 to the City of Arcadia

Reorganization No. 2018-03 to the City of Arcadia (PARCEL 1 -Detached from City of Arcadia)

Reorganization No.2018-03 to the City of Arcadia-(PARCEL 2- Annexed to City of Arcadia)

Download:Â Reorganization No. 2018-03 to the City of Arcadia


Street Lights

Abstract: Point layer of street lights in Los Angeles County.Purpose: This data is used for maintaining inventory of street lights by Traffic and Lighting, a Division of the Los Angeles County Department of Public Works.

Download Data


Transit Oriented Districts (TOD)

This layer represents the proposed Transit Oriented Districts (TODs)Â as depicted in Figure 6.5 in the General Plan 2035. These are urban and suburban areas with access to major transit and commercial corridors that have the most potential for infill development, and are well-suited for higher density housing and mixed uses. With the exception […]

Scenic Highways

Description Adopted and Proposed Scenic Highways from Caltrans (click here for more information) Updated 4/20/17 for a newly adopted scenic highway.Â

Data can be downloaded here:

Download Shapefile (.zip)

Master Plan of Highways

Adopted Countywide Highway / Freeway Plan […]

Airport Runways

Airport Runways in the County of Los Angeles digitized from high-resolution aerial photography, and created by the following agencies:Â LAWA (Los Angeles World Airports), Department of Public Works, City of Long Beach, City of Santa Monica, and City of Burbank.

The runways include all paved and access tarmacs to the flight lines.

Download […]

Economic Opportunity Areas

Economic Opportunity Areas (EOA)

Introduced by the Antelope Valley Area Plan that was adopted by the Board of Supervisors on 6/16/15, the Economic Opportunity Area layer identifies areas that have significant opportunities for growth and economic development. For more information about this, please see the Antelope Valley Area Plan, chapter 2 […]

Trail-Related Facilities

This shapefile contains trail-related facilities, including equestrian centers, equestrian parks, rest areas, trailheads and staging areas. Some facilities are maintained by other agencies, but are shown here to demonstrate continuity throughout the county’s trail systems. Data was collected from July 2012 to January 2016.

Download the data here.


Freeway Lines used for cartographic purposes. Freeways in L.A. County represented by single lines, which is ideal for avoiding overlapping labels and freeway shield symbology. Alignment based on aerial photos.


Download the data here.

Scenic Drives

Scenic Drives

Introduced by the Antelope Valley Area Plan, adopted by the Board of Supervisors on 6/16/15, the Scenic Drives layer identifies major roads that have scenic signifigance. Also establishes development guidelines to help preserve their scenic qualities. For more information, please see Chapter 4 of the Antelope Valley Area Plan […]

OpenStreetMap (OSM) California Downloads

Download: OSM California Streets, etc. (Geofabrik)

Download: OSM Land Polygons (Jochen Topf and Christoph Hormann)

OpenStreetMap (OSM) is built by a community of mappers that contribute and maintain data about roads, trails, cafes, railway stations, and much more, all over the world. Luckily, Geofabrik, a German-based consulting firm regularly […]

MTA Park & Ride Locations

Park and Ride Locations from MTA. Visit the LA Metro Developer site for other metro or more current data.

Click here to download the data.

Parking Lot Boundaries – Commercial, Industrial, Government (2014)

This dataset contains the boundaries of parking lots in the County of Los Angeles 5,000 square feet and larger for commercial, industrial, and government properties.


The Los Angeles County Office of Sustainability funded the development of this dataset in order to support the identification of potential locations for the installation […]


Los Angeles County street centerlines, which serve as Primary Disaster Routes (freeways and highways) and Secondary Disaster Routes (highways and other roads).

Street centerlines are from the CAMS_ROADS dataset (2015-09-09, 2018-07-18).

Disaster Routes description courtesy of LA County DPW Disaster Routes website (http://dpw.lacounty.gov/dsg/disasterroutes/):

“Disaster Routes play a primary role in disaster response and […]

Locations/Points of Interest (LMS Data) – January 2016

Current data date:Â January 2016

The major changes to this file include an update of all public school locations from the State Department of Education

Download the data

LMS_Data_Public_20160114_gdb – Zipped file geodatabase – full dataset LMS_Data_Public_20160114_shapefile - Due to the length of a number of the fields, a shapefile’s 255 […]

Public GIS Mapping Services

We are making a number of our GIS data layers available as public mapping services based upon ESRI’s ArcGIS Server technologies at this URL (http://public.gis.lacounty.gov/public/rest/services).  More details on each service will follow as we have the time to describe them, but generally they include GIS data that can […]

Airports (Countywide)

Shows all airports in Los Angeles County. For a link to the Department of Regional Planning’s Airport Land Use Commission page, click here. UPDATED on 4/27/15 to reflect the name change from El Monte Airport to the San Gabriel Valley Airport

Download Shapefile (.zip)

View in the new LA County Open Data Portal […]

Injury Collisions in Los Angeles County (SWITRS) 2003-2012

The Statewide Integrated Traffic Records System (SWITRS) is collected and maintained by the California Highway Patrol (CHP). Â SWITRS contains all collisions that were reported to CHP from local and governmental agencies.

The data available here were downloaded from the Transportation Injury Mapping System (TIMS) as UC Berkeley (http://tims.berkeley.edu/index.php).  TIMS was established […]

Orange County GIS Data

Orange County now has a data portal for downloading GIS data, including parcels, road lines, etc.  This looks like a very nice capability. You have to register to access the data, but it’s a great step forward: Click here to access

As well, Orange County Transportation Authority has a website to […]

L.A. County Street & Address File

Starting in September 2014, the data will be uploaded every week on Sunday with the newest revisions from CAMS (Countywide Address Management System).

Important note:Â This is the first output of the final data structure. Â In the next few weeks we will begin providing weekly updates as well as a number […]

Traffic Counts for California State Highways

An example from Orange County

While this isn’t GIS data directly, the data available at the Traffic Data Branch website can be spatially enabled to show traffic counts at the various intersections of the State Highway System.

Data available include:

Traffic Counts 2011 Annual Average Daily Traffic (AADT)Â […]

Southern California Railroad Mileposts with Sheriff Reporting Districts

RD Map


Railroad mileposts used to report incidents and issues along railroad lines to public safety (law enforcement and fire). Â It includes LA County Sheriff Reporting District Numbers for each milepost.


This dataset was developed in 2006 to be added to Reporting District Maps for the LA County Sheriff, […]

Bike Ways

April 11th, 2017

There are a number of sources of bikeway data out there.  Currently, we host the most comprehensive and authoritative data source available to the public, please see:


This site currently relies on a dataset from 2012. We are working to update this to the latest dataset available […]

2012 County of Los Angeles Bicycle Master Plan

Keywords: Bikeway, Bicycle, off-road Abstract: The dataset includes the bikeway network proposed in the 2012 County of Los Angeles Bicycle Master Plan. Purpose: The dataset includes the bikeway network proposed in the 2012 County of Los Angeles Bicycle Master Plan. The Plan proposes more than 800 miles of bikeways to be installed throughout the […]

LA City Planning GIS Data Portal

LA City Planning GIS Data Portal

The City of Los Angeles Planning department has launched a GIS Data Portal for downloading various GIS data files pertaining to City Planning information.

You can access the data by going to http://planning.lacity.org, selecting the Maps and Stats button on the left, […]

California Spatial Information Library (CaSIL)

The Cal-Atlas site facilitates the coordinated and sustainable development, maintenance, licensing and sharing of geospatial data and web map services by California government agencies, partners and stakeholders. California government agencies work with the California GIS Council, regional GIS collaboratives and the broader California GIS community to define the data architecture, systems, standards, agreements and processes […]

Caltrans GIS Data Portal

This is a rich set of data available from CalTrans – not limited only to Transportation data:


Transportation Layer Themes…

Road Base Map images (geo-referenced) Bus/Transit Freight/Ports Airports Projects California Interregional Blueprint (CIB)

Caltrans GIS Coordinators List (updated 7/2014)- click here.


More, from the website:

How to […]

2010 TIGER Roads

The TIGER road file is a street centerline network used by the US Census Bureau to help locate and find citizens during its decennial census.

Historically this file has had a number of identified issues with its geographic accuracy, but the 2010 file has been tested by LA County and found to be highly accurate […]


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 […]

Alternative Fuel Stations

I downloaded and created a data layer of alternative fuel stations from NREL – I look forward to adding to our service locator and various maps.

Here is a link to a download from NREL for alternative fuel stations:Â http://www.afdc.energy.gov/afdc/data_download/

Data links:

Alternative Fuel Stations (United States) – zipped shapefile Alternative Fuel […]

Metro GIS Data (Transit Data for Los Angeles County)

I was just notified about  this website:  Metro Developer which is a link to Metro’s Offical Blog of Transit Data and Technology including:

Bikeways Data Metro Bus Lines Metro Bus Stops Metro Rail Lines Metro Rail Stations

Here is the link to the data download page:Â http://developer.metro.net/introduction/gis-data/download-gis-data/

Metrolink Lines with Sheriff Reporting Districts

This dataset was developed by LA County Urban Research in support of a project to map the Metrolink Lines and their related Reporting Districts for the Sheriff in 2006.

This dataset is fairly complex, since it uses a linear referencing model to ensure transfer information about reporting districts from a table of cities […]

Department of Parks and Recreation Trail Access Points

County trail access […]

Department of Parks and Recreation Trails

Existing Los Angeles Couonty trails […]