These are the Sensitive Environmental Resource Areas (SERAs) identified in the Santa Monica Mountains Local Coastal Program, which was certified by the California Coastal Commission on October 10, 2014 (a link to the resolution is here). Also known as Biological Resources in the SMM […]
USGS has now posted 2014 imagery for a portion of the southern California urban region. New imagery was collected in mid 2014 by USGS contractors for the built up areas around the Orange County and Riverside/San Bernardino urban areas. This region covers about 2,250 square miles. The images have a one foot resolution and […]
These dataset contains the dates of the imagery as well as the image chips that were compiled into the 2014 Los Angeles Regional Imagery Acquisition Consortium (LARIAC4) 4-inch and 1-foot color orthophotography.
Each polygon contains an 8 digit number that corresponds to the date the image was acquired (for example, 20140125 corresponds to January […]
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 […]
Summary This data is a representation of the program boundaries for Department of Public Social Services, for all district offices. There are separate boundary layers for program Intake boundaries, which are used to tell County residents which office to go to when applying for a particular program. There are also separate boundaries […]
The LA County Sanitation Districts are a partnership of 24 independent special districts that serve the wastewater and solid waste management needs of approximately 5.5 million people in Los Angeles County (County). The Sanitation Districts’ service area covers approximately 824 square miles and encompasses 78 cities and […]
The Port of Los Angeles manages GIS information about its Berths, Marinas, docks, and slips. They have provided a set of feature classes, including:
Berth Lines Dock Lines Marina Boundaries Slips Dock Structures
You can see the organization of the data in the image on the right.
Download the Data
POLA_Data – zipped […]
Rural Preservation Areas
Introduced in the Antelope Valley Area Plan, adopted by the Board of Supervisors on 6/16/15, the Rural Preservation Areas layer identifies several types of rural preserves such as “Rural Town Areas”, “Future Town Areas”, “Open Space”, etc. It lays out the framework of the Land Use Policy Map […]
Specific Plan – Proposed
These are Proposed Specific Plans for the unincorporated areas of Los Angeles County. The adoption of the Antelope Valley Area Plan by the Board of Supervisors (6/16/15) introduced a new Specific Plan Boundary on the Land Use Policy maps for the Centennial project and other adjacent parcels. This […]
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 (click […]
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 (click […]
Agricultural Resource Areas
Agricultural Resource Areas were introduced with the Antelope Valley Area Plan that was adopted on 6/16/15 by the Board of Supervisors. They are meant to preserve Agricultural activities in the Antelope Valley and encourage low-density development. For more information, please reference the Antelope Valley Area Plan, Chapter 4 (click […]
Agricultural Opportunity Areas (AOA)
This identifies areas that are presently or historically used for agricultural purposes. This information was digitized from the 1986 Antelope Valley Hazards and Resources map, and the 1980 General Plan Special Management Areas map. Updated 6/25/15 for the Board of Supervisors’ adoption of the Antelope Valley Area Plan […]
Adopted Countywide Highway / Freeway Plan […]
Proposed Significant Ecological Areas (SEA)
Proposed updates to the Significant Ecological Areas are based on aerial imagery and parcels. Please note that proposed SEAs have not been officially adopted as part of the L.A. County General Plan. For the Existing/Adopted SEAs click here.
Proposed SEAs as defined by the Antelope Valley […]
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 […]
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. Updated 6/25/15 for a boundary adjustment in Kagel / Lopez […]
Area / Community / Coastal / Neighborhood Plans
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 […]
This dataset contains tree locations and information from 26 parks managed by the Los Angeles County Department of Parks and Recreation.
LA County Parks – Trees (phases 1 and 2) – zipped shapefile Shapefile Metadata – pdf format LACO Park Trees Phases 1 and 2 – Excel […]
From this post you can download an address locator customized for Los Angeles County, as well as the rules that build it.
The County of Los Angeles currently is able to confidently match over 98.8% of incoming addresses. This has been tested against approximately 9 million addresses composed of voters’ addresses, utility addresses, […]
An Airport Influence Area is the area which current or future airport-related noise, over flight, safety, and/or airspace protection factors may significantly affect land uses or necessitate restrictions on those uses. It includes airport owned property, Runway Protection Zones (RPZ), inner & outer safety zones and Community Noise Equivalent Level (CNEL) contours.
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 […]
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 4/27/15 […]
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 […]
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 […]
Two georeferenced images of historic maps of Los Angeles were downloaded from Earthworks, as posted by SoCalGIS. Since they were georeferenced I thought they might be of interest.
Many thanks to Harvard University Library for scanning and georeferencing these maps.
Click below to download
These shapefiles represent the Proposed Land Use Policy and Zoning associated with the Antelope Valley Area Plan update. This plan was adopted by the Board of Supervisors on 3/24/15. It should be noted that, despite the Board adoption, these layers are still to be considered PROPOSED until the plan goes into effect (date to be […]
THIS LAYER HAS BEEN REMOVED pending the update of the Proposed Significant Ecological Areas Ordinance. Please visit the SEA Ordinance Page for the latest update on the status of this project (please click here). Below is the text that was posted in May, 2014 for this layer–FOR INFORMATIONAL PURPOSES ONLY:
This layer is […]
With the release of the Local Roll to the public (see this data entry) we are now able to release the dataset that supports the LA County Solar Map (http://solarmap.lacounty.gov).
The Solar Map Database contains the results of the 2006 solar model (for details see this data […]
The Statewide Integrated Traffic Records System (SWITRS) is collected and maintained by the California Highway Patrol (CHP). 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 […]
The following table provides some information on proposed city reorganizations (annexations/detachments) within Los Angeles County which have been submitted to and accepted by LAFCO for processing. The main purpose of this webpage is to make available the boundaries of the proposed reorganizations in GIS (shapefile) and image (PDF or JPEG) formats.
If you are looking for city boundaries or city annexation/detachment history, […]
Assessor Parcels from the 2014 Tax Roll are now available for download!
The Office of the Assessor (click here for their website) maintains assessment records of real and personal property in the County of Los Angeles, as well as a GIS Tax Parcel Base Map. The Assessor has recently changed its policies and […]
This dataset shows the geographic boundaries of public safety answering points, tied to correct/legal city boundaries. These geographic boundaries determine where an emergency call is routed, especially in the new e911 system. A Public Safety Answering Point (PSAP) is a state-managed local center where all 911 calls are routed. They are typically […]
This dataset contains quaternary faults within 50 miles of Los Angeles County.
Click here to download the shapefile
The source of this data is the USGS Earthquake Hazards Program. The data was downloaded from the Faults and Folds Database website (click […]
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 […]
I was recently made aware of a couple of sites where NOAA makes data available.
West Coast Ocean Data Portal, which hosts data related to the oceans on the west coast:
If you are looking for flood zone data, you can access the information from FEMA through the FEMA GeoPlatform.
Here is a link to the home page: https://hazards.fema.gov/femaportal/wps/portal/NFHLWMS. At this site you can access the FEMA webmap to download data, and there are instructions […]
Current date of the data: August 2015
The Land Types dataset is a public domain dataset managed by the County of Los Angeles which includes various types of land use that are critical for mapmaking and geographic analysis. The data has been created to match parcel boundaries where possible, and digitized from 4-inch aerial photography where […]
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 9/3/14 to add Marina Del Rey and Santa Catalina Island.
The Land […]
A town council is a democratically elected form of government for small municipalities or civil parishes. A council may serve as both the representative and executive branch. Source: individual town councils and the GIS Section; last update: December, 2014.
I was informed that high quality boundary files for cities and special districts in Orange County are available from Orange County LAFCO’s website.
LA Times aggregates a number of datasets, along with an API for accessing them.
Of greatest interest to most folks is the LA Times Neighborhood dataset (click here to access), as well as the LA County Regions.
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 […]
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. Last updated 10/29/14 for updated Significant Ridgelines in newly certified Santa Monica Mountains Coastal Plan.
Data can be downloaded here:
Download Shapefile (.zip)
The Fire Department’s jursidictional areas. Includes: Stations-170, Battalions-22, Divisions-9 and Regions-3. There are 199 individual polygons with 30 Stations having 2 or more discrete polygons.
Click here for Shapefiles
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
Los Angeles County, The Works
This award winning application for iOS and DROID enables residents of Los Angeles County to interact with the Departments of Public Works, Parks and Recreation, Public Health, and Regional Planning by
Requesting facility and trail maintenance at County parks, as well as reporting potential health and safety […]
Substructure Maps Grid
A limited number of Substructure maps in “pdf” format are available via GIS polygons representing grids containing URL links. Across various areas of Los Angeles County, paper maps were created by the Department of Public Works (DPW) and its predecessors to show underground utilities such as cable TV, gas, […]
Current data date: July 2014
Download the data
LMS_Data_20140707 – Zipped file geodatabase. Due to the length of a number of the fields, a shapefile with its 255 character limit is unable to store all of the information regarding description, hours, phone numbers, etc. This data was extracted July 7th, 2014. This is the […]
Abstract: This GIS layer was created to delineate catchment areas for Municipal Separate Storm Sewer System (MS4) outfalls under the Los Angeles County Flood Control District (LACFCD) jurisdiction pursuant to a 2012 National Pollutant Discharge Elimination System (NPDES) permit.
Description: The data is a compilation of storm drain hydrology studies completed by the […]