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California Government Data
18,986 open datasets about California from 10 state and local governments and federal agencies.
Datasets
18,986
State government
9,106
County and city
2,693
Federal, about the state
7,187
Open data portals
Official portals run by governments in California
- California Open DataState of California · data.ca.govCKAN4,690
- DataSFCity and County of San Francisco · data.sf.govSocrata668
- LA County Open DataLos Angeles County, California · data.lacounty.govArcGIS Hub620
- Los Angeles Open DataCity of Los Angeles · data.lacity.orgSocrata361
- San Diego County Open DataSan Diego County, California · data.sandiegocounty.govSocrata349
- Oakland Open DataCity of Oakland · data.oaklandca.govSocrata313
- San Jose Open DataCity of San Jose · data.sanjoseca.govCKAN170
- Santa Monica Open DataCity of Santa Monica · data.santamonica.govCKAN82
- Marin County Open DataMarin County, California · data.marincounty.govSocrata46
- Sonoma County Open DataSonoma County, California · data.sonomacounty.ca.govSocrata24
- DataSFCity and County of San Francisco · data.sfgov.orgSocrata668
California datasets
10,000+ datasets
Narrow by topic
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- Long-term Care Facilities Annual Utilization DataState of California · Department of Health Care Access and InformationOn an annual basis (calendar year), individual LTC facilities report facility-level data on services capacity, utilization, patients, and capital/equipment expenditures.PDFXLSXASPXDOCUpdated 10/29/2026Yearly
- Hospital ChargemastersState of California · Department of Health Care Access and InformationThis dataset contains Hospital Chargemasters with prices in effect as of June 1 of their reporting year. Chargemasters consists of a list of average charges for 25 common outpatient procedures, and the estimated percentage change in gross revenue due to price ZIPUpdated 10/29/2026Yearly
- Hospital Quarterly Financial & Utilization Report - Sum of Four QuartersState of California · Department of Health Care Access and InformationThe summation contains updated data which reflect all corrections made by HCAI audit staff and hospital representatives. Each file consists of one rolling 4th quarter file for the respective calendar year of data. Comparison of the previously released data filPDFXLSXASPXDOCUpdated 10/29/2026Irregularly
- Hospital Quarterly Financial & Utilization Report - Complete Data SetState of California · Department of Health Care Access and InformationOn a quarterly basis (every three months), individual hospitals and hospital systems report summary facility-level data on services capacity, revenues and expenses by payer, and utilization by payer. The complete database contains all of the data reported by hPDFXLSXASPXDOCUpdated 10/29/2026Quarterly
- Medi-Cal Certified Eligibles Data by Month with DemographicsState of California · California Department of Health Care ServicesThese files contain monthly data by county for Medi-Cal certified eligibles, by various demographics traits. The data is split out and not distributed as a single dataset for the purposes of de-identification. The dataset by Aid Category provides monthly reporCSVZIPPDFUpdated 10/29/2026Monthly
- Statewide Medi-Cal Certified Eligible Individuals, by Aid Code, 2010 to the Most Recent Reportable MonthState of California · California Department of Health Care ServicesThis data set includes statewide counts of Medi-Cal certified eligibles by Month, Aid Code and Delivery System. The term certified eligible refers to beneficiaries who have been determined eligible for Medi-Cal based on a valid eligibility determination.CSVZIPPDFWEBSITEUpdated 10/29/2026Monthly
- Medi-Cal Certified Eligible Counts, by Month of Eligibility, Zip Code, and SexState of California · California Department of Health Care ServicesDataset contains counts of individuals certified eligible for Medi-Cal, by Month of Eligibility, Zip Code, and Sex, from Calendar Year 2005 to the most recent reportable month. Due to the amount of data presented, below the dataset has been split into three fiCSVZIPUpdated 10/29/2026Monthly
- Community Care Licensing FacilitiesState of California · California Department of Social ServicesCommunity Care Licensing Division The Community Care Licensing Division’s (CCLD) mission is to promote the health, safety, and quality of life of each person in community care through the administration of an effective collaborative regulatory enforcement systCSVZIPGeoJSONKML+5Updated 10/29/2026Irregularly
- CalHHS Dataset CatalogState of California · California Health and Human Services AgencyThis dataset is a catalog of all the datasets available on the CalHHS Open Data Portal. Each item in the catalog represents a dataset and includes the associated metadata and additional information.ZIPUpdated 10/29/2026Irregularly
- WIC Enabled Farmers and Authorized Farmers MarketsState of California · California Department of Public HealthCalifornia farmers provide nutritious food s to families throughout the state, the nation, and the world. The California Department of Public Health/Women, Infants, and Children Division (CDPH/WIC) supports the consumption of fresh, locally grown fruits and veCSVZIPUpdated 10/29/2026Daily
- COVID-19 Vaccine Progress Dashboard Data by ZIP Code (ARCHIVED)State of California · California Department of Public Health__Note__: This dataset has been archived as of October 1st, 2026. In these datasets, a person is defined as up to date if they have received at least one dose of an updated COVID-19 vaccine. The Centers for Disease Control and Prevention (CDC) recommends that XLSXCSVZIPUpdated 10/29/2026Weekly
- COVID-19 Vaccine Progress Dashboard DataState of California · California Department of Public Health__Note__: In these datasets, a person is defined as up to date if they have received at least one dose of an updated COVID-19 vaccine. The Centers for Disease Control and Prevention (CDC) recommends that certain groups, including adults ages 65 years and olderZIPCSVXLSXUpdated 10/29/2026Monthly
- CDPH-Wastewater Surveillance Data, CaliforniaState of California · California Department of Public HealthThe California Department of Public Health (CDPH) is coordinating with wastewater utilities, local health departments, academic researchers, and laboratories in California on wastewater surveillance for infectious disease pathogens of interest to public healthCSVXLSXZIPUpdated 10/29/2026Daily
- Well Completion ReportsState of California · California Department of Water ResourcesThis Well Completion Report dataset represents an index of records from the California Department of Water Resources' (DWR) Online System for Well Completion Reports (OSWCR). This dataset is for informational purposes only. All attribute values should be verifCSVXLSXUpdated 10/29/2026Weekly
- CA Urban Retail Water System Water Loss Annual Loss Audit DataState of California · California Department of Water ResourcesThis dataset contains annual validated water loss audit reports submitted to the Department of Water Resources by California urban retail water suppliers, as required under Title 23, California Code of Regulations Section 638.5(c) (Regulation). California WateCSVDOCUpdated 10/29/2026Daily
- Dry Well Reporting System DataState of California · California Department of Water ResourcesIn California, water systems serving one (1) to 15 households are regulated at the county level. Counties vary in their practices, but rarely do counties collect data regularly from these systems. Even where data is collected, it is entirely voluntary. A revieCSVUpdated 10/29/2026Irregularly
- Periodic Groundwater Level MeasurementsState of California · California Department of Water ResourcesThe DWR Periodic Groundwater Levels dataset contains seasonal and long-term groundwater level measurements collected by the Department of Water Resources and cooperating agencies in groundwater basins statewide. It also includes data collected through the SustCSVZIPTXTUpdated 10/29/2026Weekly
- GSP Monitoring DataState of California · California Department of Water ResourcesThe Groundwater Sustainability Plan (GSP) Monitoring dataset contains the monitoring sites and associated groundwater level, subsidence or streamflow measurements collected by Groundwater Sustainability Agencies (GSA) during implementation of their GSP. All daCSVArcGIS RESTUpdated 10/29/2026Irregularly
- Groundwater Sustainability Plan Annual Report DataState of California · California Department of Water ResourcesThe Groundwater Sustainability Plan (GSP) Annual Report (AR) datasets contain the following data submitted by Groundwater Sustainability Agencies (GSA) and Alternative Agencies as part of their GSP AR or Alternative to GSP AR: groundwater extraction, surface wCSVUpdated 10/29/2026Irregularly
- City Employment Compensation PlanCity and County of San Francisco · Human ResourcesHourly rate steps for all stepped salary plans. See the City Employment Classification Definitions dataset for job descriptions and minimum qualifications for each position.CSVJSONXMLUpdated 10/29/2026Twice a year
- Taxi A-Card InformationCity and County of San Francisco · Municipal Transportation AgencyA. SUMMARY A Taxi A-Card is a permit issued to taxi drivers operating in San Francisco. This dataset contains SFMTA status information for drivers’ A-cards. Taxi data providers can integrate this data to verify A-Card validity and ensure compliance. B. HOW THECSVJSONXMLUpdated 10/29/2026Daily
- Stormwater inlets, drains and catch basinsCity and County of San Francisco · PUCNote: the column priority_status was removed on 6/12/2026 A. SUMMARY This is a geospatial dataset of the storm drains throughout most of the City as maintained by SF Public Utilities Commission Wastewater Enterprise. This dataset was originally posted to facilCSVJSONGeoJSONXMLUpdated 10/29/2026Daily
- Registrar Recorder Election PrecinctsLos Angeles County, California · County of Los AngelesThe RRCC’s GIS Section consolidates Established Precincts based on an election shared active districts. This layer contains a list of Consolidated Precincts, Vote By Mail status (1 being true, 0 being false), Ballot Group, Serial Number and Consolidation VoterCSVGeoJSONShapefileKML+1Updated 10/29/2026
- Temp Street Closure IntersectionsCity and County of San Francisco · Municipal Transportation AgencyA. SUMMARY This dataset contains a list of intersections impacted by upcoming and current street closures occurring as a result of the Shared Spaces program, certain special events, and some construction work. This dataset only includes street closures permittCSVJSONGeoJSONXMLUpdated 10/29/2026Daily
- Temporary Street ClosuresCity and County of San Francisco · SFMTAA. SUMMARY This dataset stores upcoming and current street closures occurring as a result of the Shared Spaces program, certain special events, and some construction work. This dataset only includes street closures permitted by the San Francisco Municipal TranCSVJSONGeoJSONXMLUpdated 10/29/2026Daily
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Only show:State government (9,106)County and city (2,693)Federal agencies (7,187)
Frequently asked questions
- Does California have an open data portal?
- Yes. California Open Data (data.ca.gov), DataSF (data.sf.gov), LA County Open Data (data.lacounty.gov) and 8 more publish open data for California.
- How many datasets are there about California?
- The DatenUS catalog lists 18,986 datasets: 9,106 from the state government, 2,693 from counties and cities, and 7,187 federal datasets that cover California.
- Is this data free to use?
- State and local portals usually allow free reuse under an open license or their terms of use, and most federal data is in the public domain. Check each dataset page for its license.
Source: California Open Data, DataSF, LA County Open Data, Data.gov Catalog · Last updated 10/30/2026
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