AndreaBozzo/ceres-open-data-index huggingface dataset:
LACoFD Fire Hazard Severity Zones – LRA (Feature Layer)

PRC 4201-4204 and Govt. Code 51175-89 direct the California Department of Forestry and Fire Protection (CDF) to map areas of significant fire hazards based on fuels, terrain, weather, and other relevant factors. These zones, referred to as Fire Hazard Severity Zones (FHSZ), then define the application of various mitigation strategies to reduce risk associated with wildland fires. State Responsibility Area (SRA) was originally mapped in 1985 and has not been updated since, except with respect to changes in SRA boundaries. Local Responsibility Areas (LRA) were originally mapped in 1996, and also has not been updated since, although many local governments have made similar designations under their own authority. Current FHSZ is available for 1985, 2007 SRA, and 2007, 2025 LRA. CDF wishes to remap both SRA and LRA areas to provide updated map zones, based on new data, science, and technology that will create more accurate zone designations such that mitigation strategies are implemented in areas where hazards warrant these investments. The zones will provide specific designation for application of defensible space and building standards consistent with known mechanisms of fire risk to people, property, and natural resources. For more information, please visit [https://frap.fire.ca.gov/projects/hazard/fhz] Description Non-Wildland, Moderate, High and Very High Fire Hazard Severity Zones within LRA (Local Responsibility Area) in Los Angeles County. These zones were established in 2025. Credits CAL FIRE recoginzes the important contribution of various local government entities that contributed data, maps, and comments that were critical components of the FHSZ mapping process. Contact Information: Los Angeles County Fire Department Geographic Information Systems Section [LACoFDGIS@fire.lacounty.gov]
Congressional Districts (2001)

The US Congressional Districts layer contains polygons for US Congressional Districts. The source for the information in this layer is the Los Angeles Registrar/Recorder's Precinct Information File (PIF), which is designed to match the Thomas Brothers TRNL (road network) layer. Where boundaries are defined by streets, water, city boundaries, or other features, those arc segments are copied to the districts layer, so that the boundaries and other layer features match perfectly.
Registrar Recorder Precincts with District Names

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 Assembly Districts Schools Districts Water and Waste Districts Others Last updated - January 2024.
Unincorporated LA County Illegal Dumping Incidents

This layer consists of illegal dumping cases recorded by Los Angeles County Public Works Environmental Programs Division. It includes the following information: <!--· Location – Nearest address of illegal dumping location <!--· Date – Date illegal dumping request was routed by LA County Public Works Environmental Programs Division staff <!--· SD – Supervisorial District of illegal dumping location <!--· CSA – Countywide Statistical Area of illegal dumping location <!--· Service_Area_Name – Waste Collection Service Area of illegal dumping location
TTC Business Category Summary

The Los Angeles County Business License program is regulation-based and requires licenses for those business activities that may impact the health, safety, and welfare of the public. A County Business License is required only if the business is located in the County's unincorporated area or in one of the following contracted cities: Malibu, Santa Clarita, and Westlake Village. ─────────────────┬────────────────────────────────────────────────────────────────────────────────────── Business Category│The category the business belongs to ─────────────────┼────────────────────────────────────────────────────────────────────────────────────── Count │The count of businesses within this category in the specified geographic regions ─────────────────┼────────────────────────────────────────────────────────────────────────────────────── Percent │The percent of all businesses within this category in the specified geographic regions ─────────────────┴──────────────────────────────────────────────────────────────────────────────────────
Animal Care PawStats Data

─────────────┬──────────┬───────────────────────────────── Field Name │Field Type│Description ─────────────┼──────────┼───────────────────────────────── Facility │Text │ACC locations ─────────────┼──────────┼───────────────────────────────── Animal ID │Text │Animal ID ─────────────┼──────────┼───────────────────────────────── Animal Type │Text │Animal Type ( Dogs, Cats, Others) ─────────────┼──────────┼───────────────────────────────── Animal Breed │Text │Primary Breed ─────────────┼──────────┼───────────────────────────────── Impound No │Text │Impound No ─────────────┼──────────┼───────────────────────────────── Admission FY │Text │Admission Fiscal Year ─────────────┼──────────┼───────────────────────────────── Intake Type │Text │Intake Type ─────────────┼──────────┼───────────────────────────────── Intake Group │Text │Intake Group ─────────────┼──────────┼───────────────────────────────── Outcome FY │Text │Outcome Fiscal Year ─────────────┼──────────┼───────────────────────────────── Outcome Type │Text │Outcome Type ─────────────┼──────────┼───────────────────────────────── Outcome Group│Text │Outcome Group ─────────────┼──────────┼───────────────────────────────── Intake Date │Date │Intake Date ─────────────┼──────────┼───────────────────────────────── Outcome Date │Date │Outcome Date ─────────────┴──────────┴─────────────────────────────────
Care Voucher Statistics Data

Even before the pandemic, many pet owners faced barriers in accessing veterinary care. A national study by the University of Tennessee in 2018 found that financial hurdles affected 80% of households experiencing barriers to care. To bridge this gap, DACC introduced the Care Voucher program. This initiative covers up to $500 in veterinary expenses and temporary animal boarding, benefiting pets in our contract cities and unincorporated areas. The program relies on grants and donations received by DACC and its partner, the Los Angeles County Animal Care Foundation. Without these vouchers, many owners might surrender their pets, burdening the County with care costs and risking public safety due to pet abandonment. Additionally, the program supports local businesses by directing more customers to partnering veterinary clinics.
Unincorporated Areas - LA County Homeless Encampment Operations

This layer only shows encampments in the LA County Unincorporated Road Right-of-Way or Flood Control Infrastructure that require a Homeless Outreach Services Team (HOST) Protocol Request. Please navigate to [https://homeless.lacounty.gov/ua-homeless-encampment-dashboard/] for more details. For more information on Homeless Outreach Services Team (HOST) encampment operations, please visit [https://homeless.lacounty.gov/street-outreach/] To report a homeless encampment in a flood control facility or unincorporated LA County road right-of-way, please visit [https://pw.lacounty.gov/explore-public-works/report-a-problem/]
DPR Park Planning Areas (Public - Hosted)

Updated: July 17, 2025 Park planning areas are geographic boundaries in unincorporated Los Angeles County as defined by the Department of Parks and Recreation. These boundaries are used to assist in calculating fees associated with subdivisions to satisfy a subdivider’s obligations to provide park land, or open space in accordance with Los Angeles County Code, Title 21, Section 21.28.140. These boundaries are used in combination with data from the United States Census American Community Survey. Please reference Los Angeles County Code, Title 21, Section 21.28.140 for more information. Quimby Formulas are calculated using: Los Angeles County Municipal Code 21.24.340 - Residential Subdivisions--Local Park Space Obiligations--Formula Los Angeles County Municipal Code 21.28.140 - Park Fees Required When__Computation and Use
DPH Service Planning Areas (SPA)

Los Angeles County Service Planning Areas (SPAs), updated in 2022. Los Angeles County is divided into eight SPAs for health care planning purposes. Updating SPA and Health District boundaries to align with new U.S. Census Bureau census tract boundaries is performed after every Decennial Census. How was this data created? The 2020 Census Tracts from the U.S. Census Bureau's 2021 TIGER/Line were used as building blocks for the SPA layer. The 2012 SPA layer was compared to the 2020 Census Tracts to provide preliminary information on the SPAs associated with each Census Tract and to determine where SPAs no longer aligned. For the 2022 SPA layer, boundaries were updated to align with the 2020 Census Tract boundary changes with consideration for maintaining effective service delivery. The SPAs were refined to conform with the County boundary and coastline from the Supervisorial Districts 2021 and County Boundary layers. Data Fields: SPA (Type = Text, Length = 1, Alias = SPA 2022): SPA number as text; a numeric but non-quantitative identifier SPA_NAME (Type = Text, Length = 30, Alias = SPA NAME): Full SPA name ABBV (Type = Text, Length = 5): Abbreviated SPA name LABEL (Type = Text, Length = 10): Descriptive text of SPA for maps SPA_NUM (Type = Short, Alias = SPA NUM): SPA number as number; field type from earlier 2012 version of SPAs Update Frequency: After every Decennial Census or as needed
DPR Park Service Areas (Public)

Service areas shown are based on the Los Angeles County 2035 General Plan, Parks and Recreation Element. Local and regional park system service areas are based on park classifications. This layer shows service areas for County parks only. In addition to service area delineation, the layer has been enriched to capture the following demographic data for 2020: * Population served * Age segmentation * Race segmentation * Educational attainment * Household size * Median household income Please contact Kyle Williams at kwilliams2@parks.lacounty.gov with any data questions. Layer published on 4/6/2021.
2022 Urban Trees

This dataset of tree points in urban areas of Los Angeles County was created using imagery from 2022 by a team of researchers at the Urban Forest Ecosystems Institute at Cal Poly (UFEI). This map is based on NAIP imagery from 2022, processed by a convolutional neural network (CNN) which learned to detect trees from a collection of hand-annotated samples. The CNN takes NAIP imagery as input and outputs a confidence map indicating the locations of trees. The individual tree locations are found by local peak finding. * Find more information about how these points were populated here: [https://www.sciencedirect.com/science/article/pii/S1569843224002024] * Find more information about UFEI here: [https://ufei.calpoly.edu/] This project was funded by CAL FIRE (award number: [8GB18415]) the US Forest Service (award number: [21-CS-11052021-201]) J. Ventura, C. Pawlak, M. Honsberger, C. Gonsalves, J. Rice, N.L.R. Love, S. Han, V. Nguyen, K. Sugano, J. Doremus, G.A. Fricker, J. Yost, and M. Ritter. "Individual Tree Detection in Large-Scale Urban Environments using High-Resolution Multispectral Imagery." International Journal of Applied Earth Observation and Geoinformation 2024. [Urban Forest Ecosystems Institute |]
2020 Urban Trees

This dataset of tree points in urban areas of Los Angeles County was created using imagery from 2020 by a team of researchers at the Urban Forest Ecosystems Institute at Cal Poly (UFEI). This map is based on NAIP imagery from 2020, processed by a convolutional neural network (CNN) which learned to detect trees from a collection of hand-annotated samples. The CNN takes NAIP imagery as input and outputs a confidence map indicating the locations of trees. The individual tree locations are found by local peak finding. * Find more information about how these points were populated here: [https://www.sciencedirect.com/science/article/pii/S1569843224002024] * Find more information about UFEI here: [https://ufei.calpoly.edu/] This project was funded by CAL FIRE (award number: [8GB18415]) the US Forest Service (award number: [21-CS-11052021-201]) J. Ventura, C. Pawlak, M. Honsberger, C. Gonsalves, J. Rice, N.L.R. Love, S. Han, V. Nguyen, K. Sugano, J. Doremus, G.A. Fricker, J. Yost, and M. Ritter. "Individual Tree Detection in Large-Scale Urban Environments using High-Resolution Multispectral Imagery." International Journal of Applied Earth Observation and Geoinformation 2024. [Urban Forest Ecosystems Institute |]
LACoFD Fire Station Boundaries (Feature layer)

Fire Station boundaries for the Los Angeles County Fire Department. This layer includes 174 full-time station locations but excludes the seasonal station at the Los Angeles County Fair. Boundaries are not rectified to parcel boundaries. Last Updated: October 2024 Update Frequency: As Needed Contact Information: Los Angeles County Fire Department Geographic Information Systems Section [LACoFDGIS@fire.lacounty.gov]
Assessor Parcel Change Data (Current)

DATA DICTIONARY: ────────────────────┬────────────┬───────────────────────────────────────── Field Name │Data Format │Description ────────────────────┼────────────┼───────────────────────────────────────── Table Creation Date │MM/DD/YYYY │File Data ────────────────────┼────────────┼───────────────────────────────────────── Record Sequence │999,999 │Record Sort ────────────────────┼────────────┼───────────────────────────────────────── Parcel Change ID │Text │Parcel Change ID ────────────────────┼────────────┼───────────────────────────────────────── Effective Date │YYYYMMDD │Parcel Change Effective Date ────────────────────┼────────────┼───────────────────────────────────────── Date Started │YYYYMMDD │Date Started ────────────────────┼────────────┼───────────────────────────────────────── Date Completed │YYYYMMDD │Date Completed ────────────────────┼────────────┼───────────────────────────────────────── Format Type │XXX │Format Type ────────────────────┼────────────┼───────────────────────────────────────── Format Description │Text │Format Description ────────────────────┼────────────┼───────────────────────────────────────── Parcel Type │XXX │Parcel Type ────────────────────┼────────────┼───────────────────────────────────────── AIN │XXXXXXXXXX │Assessor Identification Number ────────────────────┼────────────┼───────────────────────────────────────── Assessor ID │9999-999-999│Assessor Identification Number, Formatted ────────────────────┼────────────┼───────────────────────────────────────── Parcel Status │Text │Current Parcel Status ────────────────────┼────────────┼───────────────────────────────────────── Ref Parcel Change ID│Text │Reference Parcel Change ID ────────────────────┴────────────┴─────────────────────────────────────────
Dams and Debris Basins

Debris Basins are key components of the Los Angeles County Flood Control District's (LACFCD) flood control system. Typically located at the mouths of canyons, debris basins capture sediment, gravel, boulders, and vegetative debris that are washed out of the canyons during storms, protection lower lying communities from possible flooding and property damage. Due to the transitory changes in capacity and sediment, the DPW only provides point locations of its debris basins data. More information on dams and debris basins are available from the Los Angeles County Department of Public Works' [Sediment Management website].
Subdivision Activity (Unincorporated Areas)

Created and managed to show subdivisions for all UNINCORPORATED areas in Los Angeles County (and a few contracted cities) taken in by the Los Angeles County Department of Regional Planning. Any subdivision that creates a maximum of 4 lots is a Parcel Map, and any subdivision that creates 5 or more lots is known as a Tract Map, that are approved or pending in the subdivision process. For more information about the Subdivision process, please visit our FAQ page [here]. The Department of Regional Planning performs all land use planning functions for the UNINCORPORATED areas of Los Angeles County. Our services include long range planning, land development counseling, project/case intake and processing, environmental review and zoning enforcement for each of our County UNINCORPORATED communities. What is an UNINCORPORATED area of Los Angeles County? There are 88 incorporated cities within Los Angeles County, each with its own city council. The areas that are NOT part of these cities are considered to be UNINCORPORATED County territory. More than 65 percent of Los Angeles County is UNINCORPORATED. For the approximately 1 million people living in these areas, the Board of Supervisors and County departments provide the municipal services. Updated continually NEED MORE FUNCTIONALITY? If you are looking for more layers or advanced tools and functionality, then try our suite of [GIS Web Mapping Applications].
Park Needs Assessment Plus - GIS Layers

On December 6, 2022, the Los Angeles County Board of Supervisors (BOS) adopted the 2022 Countywide Parks Needs Assessment Plus (PNA+) Final Report. Consistent with this Board action, DPR is making GIS data from the PNA+ available to the public here. Composite layers include: Regional Study Areas Rural Study Areas Regional Site Inventory Local Parks Beaches Countywide Trails Trailheads and Access Points Priority Areas for Increasing Access to Regional Recreation Priority Areas for Increasing Access to Rural Recreation Priority Area for Environmental Restoration Environmental Benefits Environmental Burdens Composite Population Vulnerability Note that all data sources in the web map are courtesy of the Los Angeles County Department of Parks and Recreation (DPR). If you'd like to learn more about the data and analysis used in the PNA+, visit[ https://lacountyparkneeds.org/pnaplus-report/]. DISCLAIMER: The data herein is for informational purposes, and may not have been prepared for or be suitable for legal, engineering, or surveying intents. The County of Los Angeles reserves the right to change, restrict, or discontinue access at any time. All users of the maps and data presented on[ https://lacounty.maps.arcgis.com] or deriving from any LA County REST URLs agree to the "Terms of Use" outlined on the County of LA Enterprise GIS (eGIS) Hub ([https://egis-lacounty.hub.arcgis.com/pages/terms-of-use]).
L.A. County Park Needs Assessment - Demographics

Park Need Study Area information, including the level of need, demographics, and health indicators. Park need levels were determined as part of our Comprehensive Countywide Park Needs Assessment, completed in 2016. All demographics are current as of June, 2020. Health indicators are from CalEnviroScreen's study from 2018. Demographics include: * Population by Race * Population by Age * Median Household Income * Household Size * Educational Attainment Health indicators, taken from CalEnviroScreen, include: * Asthma per 10,000 * Cardiovascular Disease per 10,000 * Low Birth Rate per 10,000 For data questions, please contact K.T. Williams at KWilliams2@parks.lacounty.gov
L.A. County Park Needs Assessment Results

In March 2015, the Los Angeles County Board of Supervisors approved a motion to initiate the Countywide Comprehensive Parks and Recreation Needs Assessment. This represents an unprecedented effort to document existing parks and recreation facilities in cities and unincorporated communities and to use these data to determine the scope, scale, and location of park need in Los Angeles County. The Parks Needs Assessment will help local officials, park agencies, and residents understand the future steps that need to be taken to ensure all communities have adequate access to thriving parks.
LACoFD Fire Station Locations (Feature Layer) 11/27/2023

The Los Angeles County Fire Department's Fire Station Locations. There are currently 175 stations (174 regular stations plus seasonal station 189 (LA County Fair). Data includes sand and sand bag availability for Winter 2023-2024. Last Update: November 27, 2023 Update Frequency: As Needed Contact Information: Los Angeles County Fire Department Geographic Information Systems Section [LACoFDGIS@fire.lacounty.gov]
Workers' Rights Income and Employment Index (census tract)

Created for CEO-ARDI and DCBA in response to a Board of Supervisors motion on workers' rights to develop a targeted outreach plan for "high need"/impacted communities. Data (mostly) from US Census ACS 5-year estimates 2023. See the Equity Explorer layer descriptions for detailed source information: [https://experience.arcgis.com/experience/9d7a43397ea84ab98a534be5b5376fba/page/Layer-Details/] Data featured on the [Workers' Rights Income and Employment Index] Dashboard. For questions or more information please contact [egis@isd.lacounty.gov].
Concentrated Disadvantage Index 2025 LA County

LC-06: Concentrated Disadvantage Brief description: Proportion of households located in census tracts with a high level of concentrated disadvantage, calculated using five census variables Indicator category: Community Well-being Indicator domain: Risk/Outcome Numerator: Number of households with children less than 18 years of age located in census tracts of high concentrated disadvantage Denominator: Total number of households with children less than 18 years of age Potential modifiers: age, race, ethnicity, gender, geographic location Data source: American Community Survey (ACS) Notes on calculation: Concentrated disadvantage is calculated from five Census variables: 1) Percent of individuals below the poverty line, 2) Percent of individuals on public assistance, 3) Percent female-headed households, 4) Percent unemployed, 5) Percent less than age 18. The percentages of each individual indicator are z-score transformed. A Z-score transformation is achieved by subtracting the mean of the distribution from the variable value and dividing the difference by the standard deviation of the distribution. Z = (score - mean)/standard deviation. The resulting value should be averaged into an overall index of concentrated disadvantage or deprivation. More Information: https://amchp.org/amchp-resource-library/ Distinct from similar uploads in that this layer uses 2020 Census tract geography and 2023 5-Year ACS data for calculation. For more information, please contact egis@isd.lacounty.gov.
Internet and Computer Access (census tract)

For the original data source: [https://data.census.gov/table/ACSST5Y2023.S2801]. Layer published for the [Equity Explorer], a web experience developed by the LA County CEO Anti-Racism, Diversity, and Inclusion (ARDI) initiative in collaboration with eGIS and ISD. Visit the Equity Explorer to explore internet access and other equity related datasets and indices, including the COVID Vulnerability and Recovery Index. Internet and computer access for census tracts in LA County from the US Census American Communities Survey (ACS), 2023. Estimates are based on 2020 census tract boundaries, and tracts are joined to 2021 Supervisorial Districts, Service Planning Areas (SPA), and Countywide Statistical Areas (CSA). For more information about this dataset, please contact [egis@isd.lacounty.gov].
Income per Capita (census tract)

For source data: [https://data.census.gov/table/ACSDP5Y2023.DP03]. Layer published for the [Equity Explorer], a web experience developed by the LA County CEO Anti-Racism, Diversity, and Inclusion (ARDI) initiative in collaboration with eGIS and ISD. Visit the Equity Explorer to explore Income and other equity related datasets and indices, including the COVID Vulnerability and Recovery Index. Income per capita for census tracts in LA County from the US Census American Communities Survey (ACS), 2023. Estimates are based on 2020 census tract boundaries, and tracts are joined to 2021 Supervisorial Districts, Service Planning Areas (SPA), and Countywide Statistical Areas (CSA). For more information about this dataset, please contact [egis@isd.lacounty.gov].