The subdivision activity layer represents those areas (within unincorporated areas) with cases that are either pending, approved or recorded (within the past few years) within the Los Angeles County subdivision process. Updated 4/30/13 for an annexation in Santa Clarita (recorded 4/16/13).
Data can be downloaded here:
This is zoning for the unincorporated areas of Los Angeles County.
For more complete information, see Title 22 (Planning and Zoning) of the Los Angeles County Code, or stop by the office of the Los Angeles County Department of Regional Planning, Room 1360 Hall of Records, [...]
This data depicts generalized land use classifications, each of which is intended to describe the dominant use characteristics within the area covered. Updated information regarding public parks, school sites, freeways, rail/transit lines, and other ownership-specific boundaries have been incorporated into this data. The actual use and intensity of development that may be [...]
Rural Outdoor Lighting District (Dark Skies)
This project is an amendment to Title 22 of the County Code, Planning and Zoning, to establish a Rural Outdoor Lighting District for areas of unincorporated Los Angeles County. The proposed Ordinance will establish the District with regulations that will conserve energy and resources and [...]
These districts were established when zoning was created for Los Angeles County many years ago. It was a way to break the county up into distinct areas, smaller units, for easier record keeping and organization. It is still in use to identify and keep track of those ordinances and for running queries [...]
Office of Statewide Health Planning and Development (OSHPD) is the agency in the state of California that licenses hospitals and clinics. Every year, this office generates a list of hospitals and clinics as well as reports that are based on the information submitted by the individual facilities. Hospital Annual Disclosure Report and Hospital Annual [...]
The Department of Health Services (DHS) provides acute and rehabilitative patient care, trains physicians and other health care clinicians, and conducts patient care-related research. DHS operates 4 hospitals, including some of the nation’s premiere academic medical centers through their affiliations with the University of Southern California School of [...]
The Community Partners Program is a collaborative effort between the Los Angeles County Department of Health Services (DHS) and private, community-based providers (Partners) who are committed to providing quality health services in a culturally and linguistically appropriate environment to low income and uninsured communities. This program is part of a Medicaid Demonstration [...]
2 foot contours acquired as part of the Los Angeles Regional Imagery Acquisition Consortium in 2006.
The Digital Surface Model was acquired using LIDAR (Light Detection And Ranging), which used a laser mounted in planes that were acquiring 4-inch orthophotography data. Hundreds of millions of ground measurements were made using this system, which makes it extremely accurate. This source [...]
California has launched its GeoPortal: http://portal.gis.ca.gov
Read the press release Here’s another press item
Congratulations to Scott Gregory (GIO of California) and his team – it’s a great start!
My quick takes:
The sound clips talk a lot about mobile apps – looking forward to [...]
CGS has developed a new online tool that allows you to search all of CGS’s Regulatory Maps, Landslide Maps and Tsunami Maps with related reports and GIS data. The new tool is now officially accessible through CGS’s home page. See below for a brief list of what the warehouse has to offer within [...]
USGS Earth Explorer
This dataset represents natural color, leaf-off, 1 foot high-accuracy orthorectified aerial imagery, acquired by the Los Angeles Regional Imagery Consortium (LAR-IAC) in winter 2010/2011, and made public with the partnership of the US Geological Survey (USGS). The DEM represents bare earth, whereas a related product (DSM) contains elevations and includes [...]
The grid that shows the township, range and section information for Los Angeles County taken from the PLSS.
The Public Land Survey System (PLSS) typically divides land into 6-mile-square townships, which is the level of information included in the National Atlas. Townships are subdivided into 36 one-mile- square sections. A section is an area normally [...]
Airport Runways in the County of Los Angeles digitized from high-resolution aerial photography.
The runways include all paved and access tarmacs to the flight lines.
lacounty_airport_runways (zipped shapefile).
Significant Ecological Areas (SEA)
Significant Ecological Areas (SEA) Significant Ecological Area (SEA) means an area that is determined to possess an example of biotic resources that cumulatively represent biological diversity for the purposes of protecting biotic diversity, as part of the Los Angeles County general plan or the city’s general plan. Additional [...]
The County of Los Angeles has embarked on projects to replace the data it has historically licensed from Thomas Brothers with data that it owns and maintains internally. This will allow the County to distribute, update, and improve this data without current restrictions. The layer by layer comparison is listed below, and in the guide [...]
The grid that shows the zoning maps that cover the unincorporated areas of Los Angeles County. This grid follows alignment and numbering system as the Department of Public Works House Numbering Maps. This was developed as part of the Zoning Map Conversion and Integration Project (ZCIP) – 2002 to 2006.
UPDATED on [...]
For planning purposes & reference within the General Plan Update.
Countywide layer which divides the County of Los Angeles into 11 Planning Areas. These area divisions were created for the LA County Dept. of Regional Planning by the GIS Section under direction from the General Plan Development Section. Reflects the most recent changes from the [...]
This is the boundary of Los Angeles County including Santa Catalina Island and San Clemente Island. Does not include incorporated city boundaries. Last updated 1/9/13 to include boundary modification in Los Angeles / Long Beach Harbor area (used DPW linework to adjust shorelines)
Data can be downloaded here:
Download zipped shapefile
Current version – January 1, 2013
This layer contains Legal City boundaries (as opposed to Postal City) within L.A. County. The boundaries will not line up with the Thomas Brothers city layer.
Link to DPW GIS Data Site: http://dpw.lacounty.gov/general/spatiallibrary
Updated as of December 2012
Contains precincts from the Los Angeles County Registrar/Recorder’s Office. The Registrar/Recorder uses these precincts to run elections by grouping them into election precincts, so they capture the boundaries of all voting districts in the County, including, but not limited to:
LA County Supervisorial Districts US Congressional Districts State Senate and [...]
Adopted Countywide Highway / Freeway Plan [...]
Shows all airports in Los Angeles County. For a link to the Department of Regional Planning’s Airport Land Use Commission page, click here.
For UNINCORPORATED areas of Los Angeles County only. A Specific Plan implements the General Plan/Community Plan and is a more detailed version of the General Plan for a focused area. The Specific Plan articulates planning considerations and imposes regulations or controls. Updated 10/2/12–the Canyon Park Specific Plan was taken out due to a major annexation [...]
This layer delineates ridgelines within selected CSDs whereupon restrictions are established for grading and ridgeline development. For more information on specific CSDs where these ridgelines reside, click here.
Data can be downloaded here:
DRP_RIDGELINES (zipped shapefile)
Depicts lands owned or managed by the U.S. Forest Service and designated by U.S. Government as a National Forest. The Los Padres and Angeles National Forests lie within the boundaries of Los Angeles County.
Data can be downloaded here:
Download Shapefile / .zip
The community standards districts are established as supplemental districts to provide a means of implementing special development standards contained in adopted neighborhood, community, area, specific and local coastal plans within the UNINCORPORATED areas of Los Angeles County, or to provide a means of addressing special problems which are unique to certain geographic [...]
Significant Environmental Resource Areas
Sensitive Environmental Resources (SERA) – Coast Zone Only
These are in the Coastal Zone area only, and they afford the highest protection from future land development due to their environmental signifigance and sensitivity. ESHA’s [...]
Polling locations assigned for the November 6, 2012 Presidential election as of October 31, 2012. Note – these polling locations are subject to change. Changes occur when polling locations become unavailable at the last minute, or for a variety or reasons.
The Los Angeles County Registrar/Recorder establishes polling locations for each election. Each election has [...]
The Institute for Spatial Economic Analysis (ISEA) at the University Redlands provides monthly updates of job growth for California. These are estimates but the maps are valuable.
I wanted to place this here while I attempt to contact them and gather an ongoing transfer of information to make the data available in raw [...]
Various maps are available for free as downloads (PDF files) or as hard copy prints for a fee. Available maps include Supervisorial Districts, Community Standards Districts (CSD), Zoning, Community and Area Plans, etc.
Note, this is not a link to GIS data layers, just Adobe Acrobat PDF files. For GIS data, i.e., ESRI Shapefiles, search [...]
LA City Council Districts as adopted by Final Ordinance 2012 No. 182168. This data was provided by the City of Los Angeles.
These boundaries are legally accurate as specified by the Los Angeles City Bureau of Engineering.
Download the shapefile (includes sample layer file): LA_City_Council_Districts_2012 (zipped shapefile).
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 [...]
For folks who are looking for GIS data in the City of Santa Monica, they have a page where they make this data available for download:
Click here to go to the Santa Monica GIS Data Page
Current data date: June 2012 – we will be releasing new versions of this data periodically.
This dataset contains address points from the Countywide Address Management System, a collaborative program between the County’s Registrar/Recorder, Chief Information Officer, Public Works Department, Department of Regional Planning, and many local cities [...]
The US Geological Survey has made its standard topo maps available for download through The National Map Viewer. NOTE – through research I have found that the USGS topo Store is a better place to go to download the maps. Click here to go to the store
There are now [...]
Download the shapefile here: Urban Suburban Rural (zipped shapefile).
This layer was developed by the Fire Department to use in our annual reporting to the state. We must report total incidents by Urban,Suburban, and Rural. Using the State of California formula for urban,suburban was found to be not applicable to Los Angeles County. The [...]
Fire Perimeters for Los Angeles County from 1965 to 2011. No attribute data for the years 1965-1968.fires1965-2011
Point layer of hospital emergency room locations with entry points into the facility. All locations used by the Los Angeles County Fire Department. This layer is used with our AVL system to assist squads and engines.
Download the zipped shapefile: Hosp_entry_pnts.zip
Parcel boundaries of the Marina del Rey Lease Parcels. These boundaries are different than the Assessor parcels, and represent how land is currently divided and leased by the County in unincorporated Marina del Rey. Updated May, 2012 to reflect changes made from the Marina Del Rey Local Coastal Plan that was adopted March 20, 2012.
102,700 hydrants within the County of Los Angeles Fire Department’s service territory.
Download the zipped shape file: Los Angeles County Fire Hydrants
This dataset provides the locations of directly operated and contracted mental health providers, and also includes inpatient hospitals providing mental health services as of November 2011. It does not include information on individual names of clinicians.
The LA County Department of Mental Health provides mental health services through directly operated and contracted [...]
This is a seperate zoning layer from the rest of the county as it has different categories. Santa Catalina Island falls under a specific plan (22.46.050 et.al.), which designates land use districts for the unincorporated area of the island. These land use districts serve the same role as zones, but supersede the basic [...]
Land Use Policy (1980 General Plan)
Referred to as the “General Plan” and encompasses the unincorporated areas (sometimes referred to as ‘islands’) not covered by a community, neighborhood or area plan. Adopted by the Board of Supervisors on November 25, 1980. Last Amended 4/30/12 for a Plan Amendment in Del Aire.
This dataset contains the dates of the imagery compiled into the 2011 Los Angeles Regional Imagery Acquisition Consortium 4-inch and 1-foot color orthophotography. We are currently waiting for one final block to be added to this dataset (the National Forest north of Santa Clarita).
Each polygon contains a 8 digit number [...]
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, then selecting the LADCP GIS [...]
This dataset represents natural color, leaf-off, 0.33-foot (4-inch) high-resolution, high-accuracy orthorectified aerial imagery, acquired by the Los Angeles Regional Imagery Consortium (LAR-IAC) in winter 2010/2011. This imagery covers the majority of urban/suburban areas of the County in mainland (approximately 2,898 square miles) and Catalina Island covering approximately 75 square miles. The rest of the County, [...]
This dataset was developed in 2009 by the Southern California Association of Governments (SCAG) to provide a Countywide zoning and general plan information.
Importantly, it includes the zoning codes for each city, their general plan codes, and a generalized general plan code developed by SCAG to support regional analysis. This information was consolidated by [...]
Here are links to some good resources for the City of Los Angeles. This is not data – but we put on this site because we get a lot of requests for this information.
City of Los Angeles
Map Gallery and Link to GIS Web Mapping Applications (not data; but great information).