This layer contains Legal City boundaries within Los Angeles County. The Landbase is jointly maintained by the Los Angeles County Assessor and the Los Angeles County Department of Public Works.The Los Angeles County Department of Public Works provides the most current shape file of these city boundaries for download at its https://egis-lacounty.hub.arcgis.com/datasets/la-county-city-boundaries/explore?location=34.153321%2C-118.083123%2C9.49.Note: This boundary layer will not line up with the Thomas Brothers® city layer.Principal attributes include:CITY_NAME: represents the city's name.CITY_TYPE: may be used for definition queries; "Unincorporated" or "City".FEAT_TYPE: contains the type of feature each polygon represents:Land - Use this value for your definition query if you want to see only land features on your map.Pier - One example is the Santa Monica Pier. Man-made features may be regarded as extensions of the coastline.Breakwater - Examples include the breakwater barriers that protect the Los Angeles Harbor.Water - Polygons with this attribute value represent internal navigable waters. Examples of internal waters are found in the Long Beach Harbor and in Marina del Rey.3NM Buffer - Per the Submerged Lands Act, the seaward boundaries of coastal cities and unincorporated county areas are three nautical miles (a nautical mile is 1852 meters) from the coastlineURL: cities website current as of 01/01/2023This product is for information purposes and should not be used for legal, engineering, or survey purposes. County assumes no liability for any errors or omissions.

This layer contains Legal City boundaries within Los Angeles County. The Los Angeles County Department of Public Works provides the most current shape file of these city boundaries for download at its Spatial Information Library.Note: This boundary layer will not line up with the Thomas Brothers city layer. Principal attributes include:CITY_NAME: represents the city's name.CITY_TYPE: may be used for definition queries; "Unincorporated" or "City".FEAT_TYPE: contains the type of feature each polygon represents:Land - Use this value for your definition query if you want to see only land features on your map.Pier - One example is the Santa Monica Pier. Man-made features may be regarded as extensions of the coastline.Breakwater - Examples include the breakwater barriers that protect the Los Angeles Harbor.Water - Polygons with this attribute value represent internal navigable waters. Examples of internal waters are found in the Long Beach Harbor and in Marina del Rey.3NM Buffer - Per the Submerged Lands Act, the seaward boundaries of coastal cities and unincorporated county areas are three nautical miles (a nautical mile is 1852 meters) from the coastline.

Location of shopping centers in Los Angeles CountyThis dataset is maintained through the County of Los Angeles Location Management System. The Location Management System is used by the County of Los Angeles GIS Program to maintain a single, comprehensive geographic database of locations countywide. For more information on the Location Management System, visit http://egis3.lacounty.gov/lms/.

Dataset provides the public with a snapshot of the County of Los Angeles workforce including the count of full-time permanent employees by department, employee demographics (i.e., ethnicity and gender) EEO Job Categories and, EEO Functions.

This map page grid was designed and implemented by the Los Angeles County Fire Department, Information Management Division, and Geographic Information Systems Section. Wholly based on the United States National Grid (USNG), it aims to be the Los Angeles County regional grid because of its ease of use and extensive coverage.

Each block measures 2,000 meters by 2,000 meters and are comprised of four 1,000 meter/1 kilometer USNG blocks. i.e. 11SLT4771, 11SLT4871, 11SLT4770 and 11SLT4870; left to right and up to down. For ease of use each 2,000 meter block is designated by a page number from 1 to 9,750, and it is inferred that the 1,000 meter divisions of each page are designated A, B, C or D; left to right and up to down. Therefore, each 1,000 meter block within this regional grid has a unique descriptor of 4 numerals and 1 letter.

The region covered by the grid includes Los Angeles County completely and 2 of the islands in the Channel Islands archipelago that fall into the Los Angeles County jurisdiction. It also covers close to 100% of Orange County, 50% of Ventura County, and the Los Angeles County adjacent portions of Kern County, San Bernardino County and Riverside County, and a portion of Marine Corps Base Camp Pendleton in Northwest San Diego County.

PAGE = Grid Number

Reference Date: 2016

Contact Information:

Los Angeles County Fire Department Geographic Information Systems Section LACoFDGIS@fire.lacounty.gov

The Mayor’s Office utilizes the most recent data to inform decisions about COVID-19 response and policies. The Los Angeles COVID-19 Neighborhood Map visualizes the cases and deaths across 139 neighborhoods in the city. It includes the same data used by the office to spot changes in infection trends in the city, and identify areas where testing resources should be deployed.Data Source:Data are provided on a weekly basis by the LA County Department of Public Health and prepared by the LA Mayor's Office Innovation Team. The data included in this map are on a one-week lag. That means the data shown here are reporting statistics gathered from one week ago. This map will be updated weekly on Mondays. Click on the maps to zoom in, get more details, and see the legends.

This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System (MTS). The MTS represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads shapefile includes all features within the MTS Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in the MTS that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, and stairways.

COVID-19 data for LA County neighborhoods and communities. Updated daily.

Source: LA County Public Health (http://dashboard.publichealth.lacounty.gov/covid19_surveillance_dashboard/). Code available: https://github.com/CityOfLosAngeles/covid19-indicators.

This dataset is the primary transportation layer output from the CAMS application and database. This file is a street centerline network in development by Los Angeles County to move toward a public domain street centerline and addess file. This dataset can be used for two purposes:Geocoding addresses in LA County – this file currently geocodes > 99.5% of the addresses in our test files (5,000 out of 8 million addresses) using the County’s geocoding engines.This last statement is important – the County splits the street names and addresses differently than most geocoders. This means that you cannot just use this dataset with the standard ESRI geocoding (US Streets) engine.

© US Census Bureau, TIGER, LA County, RRCC

Represent's the outer land boundary of Los Angeles County. Land boundaries are derived from the Los Angeles County Cadastral landbase. Ocean boundaries are drived from NOAA coastline data, modified to conform with LAR-IAC aerial imagery where needed. The most current copy of this data is available at the Los Angeles County GIS Data Portal.

All buildings over 64 square feet in City of Los Angeles captured through LARIAC4 4" and 1' imagery. LARIAC4 guide: https://lariac-lacounty.hub.arcgis.com/pages/lariac4-documents-dataCountywide Building Outlines download available from LA County at: https://data.lacounty.gov/maps/57f5fc977d6a427a978003a6229ab5e7/aboutData is from 2014.

Fire Region boundaries for the Los Angeles County Fire Department. 9 Divisions are grouped into 3 Regions. Last Updated: October 2024Update Frequency: As NeededContact Information:Los Angeles County Fire DepartmentGeographic Information Systems SectionLACoFDGIS@fire.lacounty.gov

Daily updates on LA County COVID testing.

Source: LA County Department of Health (http://dashboard.publichealth.lacounty.gov/covid19_surveillance_dashboard/). Code available: https://github.com/CityOfLosAngeles/covid19-indicators.

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 areas within the unincorporated areas of Los Angeles County. For detailed development standards for each CSD, please refer to the Community Standards District portion of the Los Angeles County Code (click here).LAST UPDATED: 4/9/25 for several changes related to the West San Gabriel, and Westside Area Plan updates. These updates took effect on 4/10/25.NOTE - A decision was made at the Board of Supervisor's Hearing that the CSD and Setback updates not be included. However, the GIS layers were updated with these changes and were showing on GIS-NET and Open Data between 4/9/25 and 4/14/25. On 4/14/25, these un-adopted changes were removed and the correct data now shows.NEED MORE FUNCTIONALITY? If you are looking for more layers or advanced tools and functionality, then try our suite of GIS Web Mapping Applications.

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 more detail was needed. The sub-layers L10-L13, L14-L17, and L17-20 correspond to scale-dependent rendering, where higher level values represent increased zoom levels, displaying finer spatial detail and additional data granularity. For inquiries or further assistance regarding this layer, please contact eGIS@isd.lacounty.gov.General land types that have been captured include:BeachesGolf CoursesMuseums & AquariumsParks & Recreation CentersSports & Event VenuesColleges & UniversitiesSchools (Private, Charter, Public)Hospitals (limited set)CemeteriesTV & Movie StudiosJails & PrisonsAirport BoundariesShopping CentersMobile Home Parks (09/13)

Land Use Policy as created by the various Area / Community / Coastal / Ne ighborhood Plans in the UNINCORPORATED County. For more information about the various plans, please click here, and click the 'Community Based Plan' tab. Because of the complexity of all the land use legends, this layer is presented in outline only. For the ArcGIS Layer File with all of the different legends, please click here.PLEASE NOTE: Land Use Policy in the UNINCORPORATED areas of Los Angeles county are organized in two data layers: General Plan 2035, and Area / Community Plans. The picture below shows the areas covered by the Area / Community Plan in dark brown, and the General Plan 2035 area in beige. Click here to access the 'General Plan 2035' layer.LAST UPDATED: 4/9/25 for several land use policy changes related to the West San Gabriel, Area Plan update. The Altadena Community Plan was rescinded, and this can be found in the Land Use Policy - General Plan 2035 layer. These updates took effect on 4/10/25.NEED MORE FUNCTIONALITY? If you are looking for more layers or advanced tools and functionality, then try our suite of GIS Web Mapping Applications.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, stairways, and winter trails.

A collection of maps of Los Angeles County MPAs to target various audiences for improving understanding of the location, purpose and management of California’s marine protected areas.

In 2016, Los Angeles County embarked on an effort to update the 1996 LA River Master Plan to better address existing and new challenges along the river. The updated Plan was approved and adopted by the Los Angeles County Board of Supervisors in June 2022, which now serves as a guiding document for implementation efforts along the river. This Plan covers a wide range of social and environmental aspects of the LA River, the watershed, and the communities along the river through data-driven methodology. For more information on the updated LA River Master Plan (LARMP), please visit the LA River Master Plan website.Purpose:

To provide the public with information datasets used in the analysis for the updated LA River Master Plan.

Description:

The updated LA River Master Plan is organized by nine goals, each of which represents an equally important active future priority for the LA River. These goals were informed by a rich collection of data describing the physical, social, and cultural attributes of the LA River. Hundreds of datasets were referenced and applied within the Plan to provide critical understanding of community needs and mapping for specific goals. To view and access a wide range of dataset topics such as People Experiencing Homelessness, Water Quality Prioritization, Historical Ecologies of LA County, Arts and Culture Need, Flood Risk Reduction Need, Housing Affordability Need, Parks Need, Displacement Risk, Known Projects, Major Project Zones, and more, please visit the LA River Master Plan Data website.

Historic Fire Perimeters from the Los Angeles County Fire Department. Fire perimeter data exists from 1966 through the previous calendar year. Fire perimeter data is collected from field personnel during a major fire incident.

Last Update: January 2024

Update Frequency: Yearly

Contact Information:

Los Angeles County Fire Department Geographic Information Systems Section LACoFDGIS@fire.lacounty.gov