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Federal
Walkability Index
U.S. Environmental Protection Agency —
The Walkability Index dataset characterizes every Census 2019 block group in the U.S. based on its relative walkability. Walkability depends upon characteristics of... -
Federal
Toxics Release Inventory (TRI)
U.S. Environmental Protection Agency —
The Toxics Release Inventory (TRI) is a dataset compiled by the U.S. Environmental Protection Agency (EPA). It contains information on the release and waste... -
Federal
Next Generation Simulation (NGSIM) Vehicle Trajectories and Supporting Data
Department of Transportation —
Click “Export” on the right to download the vehicle trajectory data. The associated metadata and additional data can be downloaded below under "Attachments".... -
Federal
USGS Water-Quality Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the... -
State
CA Geographic Boundaries
State of California —
This dataset contains shapefile boundaries for CA State, counties and places from the US Census Bureau's 2023 MAF/TIGER database. Current geography in the 2023... -
Federal
FWS Critical Habitat for Threatened and Endangered Species Dataset NGDA
Department of the Interior —
When a species is proposed for listing as endangered or threatened under the Endangered Species Act, the U.S. Fish and Wildlife Service must consider whether there... -
Federal
Rare Earth Element Occurrences in the United States
Department of the Interior —
Version 4.0 of this data release provides descriptions of more than 200 mineral districts, mines, and mineral occurrences (deposits, prospects, and showings) within... -
Federal
CHIRPS Version 2.0, Precipitation, Global, 0.05°, Daily, 1981-present, Lon0360
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset has 1-day (daily) averages of the Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS), which is quasi-global rainfall data set.... -
Federal
Cancer Incidence - Surveillance, Epidemiology, and End Results (SEER) Registries Limited-Use
U.S. Department of Health & Human Services —
SEER Limited-Use cancer incidence data with associated population data. Geographic areas available are county and SEER registry. The Surveillance, Epidemiology, and... -
Federal
TIGER/Line Shapefile, 2022, State, California, CA, Census Tract
U.S. Census Bureau, Department of Commerce —
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... -
Federal
US EPA Nonattainment Areas and Designations
U.S. Environmental Protection Agency —
This web service contains the following state level layers:Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010 standard),... -
Federal
Neighborhoods, US, 2017, Zillow, SEGS
U.S. Environmental Protection Agency —
This web service depicts nearly 17,000 neighborhood boundaries in over 650 U.S. cities. Zillow created the neighborhood boundaries and is sharing them with the public... -
State
Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
State of California —
The dataset currently contains hospitalization counts and rates, statewide and by county, for 4 conditions plus 3 composite measures. Hospitalizations for these... -
Federal
BLM National PLSS Public Land Survey System Polygons NGDA
Department of the Interior —
This dataset represents the GIS Version of the Public Land Survey System including both rectangular and non-rectangular surveys. The primary source for the data is... -
Federal
USGS Water Use Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The U.S. Geological Survey's National Water-Use Information Program is responsible for compiling and disseminating the nation's water-use data. The USGS works in... -
State
California Fire Perimeters (all)
State of California —
The California Department of Forestry and Fire Protection's Fire and Resource Assessment Program (FRAP) annually maintains and distributes an historical wildland fire... -
Federal
Air Quality System (AQS) Monitoring Network, EPA OAR OAQPS
U.S. Environmental Protection Agency —
This GIS dataset contains points which depict air quality monitors within EPA's Air Quality System (AQS) monitoring network. This dataset is updated weekly to reflect... -
Federal
Chronic Wasting Disease distribution in the United States by state and county (ver. 3.0, June 2025)
Department of the Interior —
Chronic Wasting Disease (CWD) is a fatal, contagious, neuro-degenerative disease affecting multiple members of the Family Cervidae. First detected in 1967, the... -
Federal
TIGER/Line Shapefile, 2021, State, California, Census Tracts
U.S. Census Bureau, Department of Commerce —
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...