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Federal
Congressional Districts
Department of Transportation —
The 119th Congressional Districts dataset reflects boundaries from January 3rd, 2025 from the United States Census Bureau (USCB), and the attributes are updated every... -
Federal
T-100 Domestic Market and Segment Data
Department of Transportation —
The T-100 Domestic Market and Segment Data dataset was downloaded on April 08, 2025 from the Bureau of Transportation Statistics (BTS) and is part of the U.S.... -
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... -
Federal
Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data Collection NGDA
Department of the Interior —
The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and... -
Federal
Building Assessment Survey and Evaluation Data (BASE)
U.S. Environmental Protection Agency —
The Building Assessment Survey and Evaluation (BASE) study was a five year study to characterize determinants of indoor air quality and occupant perceptions in... -
Federal
NIST/ASME Steam Properties Database - SRD 10
Department of Commerce —
The NIST/ASME Steam Properties Database is based upon the International Association for the Properties of Water and Steam (IAPWS) 1995 formulation for general and... -
Federal
EnviroAtlas - Farm Service Land Rental Rates by County for the United States
U.S. Environmental Protection Agency —
This EnviroAtlas data set depicts estimates for mean cash rent paid for land by farmers, sorted by county for irrigated cropland, non-irrigated cropland, and pasture... -
Federal
National Greenhouse Gas Emission Inventory
U.S. Environmental Protection Agency —
The National Greenhouse Gas Emission Inventory contains information on direct emissions of greenhouse gases as well as indirect or potential emissions of greenhouse... -
Federal
RACT/BACT/LAER Clearninghouse (RBLC)
U.S. Environmental Protection Agency —
OAR's RACT, BACT, LAER Clearinghouse (RBLC) data asset contains summary information on selected air permitting actions from EPA, state, and local permitting agencies... -
Federal
National Parks
Department of Transportation —
The National Parks dataset is frequently updated by the National Park Service (NPS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of... -
Federal
StreamCat - National Nutrient Inventory (StreamCatNNI)
U.S. Environmental Protection Agency —
Publication of EPA’s Nutrient Inventory is a critical step towards thorough mapping and accounting of sources of N and P to US landscapes. However, summaries of... -
Federal
NCEP/NCAR Reanalysis (1948-present)
National Oceanic and Atmospheric Administration, Department of Commerce —
The NCEP/NCAR Reanalysis 1 project is using a state-of-the-art analysis/forecast system to perform data assimilation using past data from 1948 to the present. Data is... -
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
Truck Stop Parking
Department of Transportation —
The Truck Stop Parking dataset was compiled on April 09, 2019 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation... -
Federal
Utility-Scale Solar, 2025 Edition: Analysis of Empirical Plant-level Data from U.S. Ground-mounted PV, PV+battery, and CSP Plants (exceeding 5 MWAC)
Department of Energy —
Lawrence Berkeley National Laboratory compiled and synthesized empirical data on the U.S. utility-scale solar sector. Utility-scale solar is defined here to include... -
Federal
National Greenhouse Gas Emission Inventory (EV-GHG)
U.S. Environmental Protection Agency —
The EV-GHG Mobile Source Data asset contains measured mobile source GHG emissions summary compliance information on light-duty vehicles, by model, for certification... -
Federal
NIST Computational Chemistry Comparison and Benchmark Database - SRD 101
Department of Commerce —
The NIST Computational Chemistry Comparison and Benchmark Database is a collection of experimental and ab initio thermochemical properties for a selected set of gas-... -
Federal
EPA Facility Registry Service (FRS): Facility Interests Dataset Download
U.S. Environmental Protection Agency —
This downloadable data package consists of location and facility identification information from EPA's Facility Registry Service (FRS) for all sites that are... -
Federal
Dynamically Downscaled Hourly Future Weather Data with 12-km Resolution Covering Most of North America
Department of Energy —
This is an hourly future weather dataset for energy modeling applications. The dataset is primarily based on the output of a regional climate model (RCM), i.e., the...