Research Guides: STEM Data Repositories and Data Sets: U.S. Government Data Repositories

Finding U.S. Government Data

Data.gov
"The home of the U.S. Government's open data." Data, tools, and resources are available through this interface.

Using Google to Find Government Datasets

Conduct a site-specific search in Google using the URL pattern site:data.*.gov

Example: The Google search "hypersonic site:data.*.gov" returned 218 U.S. Government data sites with the keyword "hypersonic" on October 19, 2021.

Application Programming Interfaces (API) to Government Data

Inventory of Agency APIs and Other Services for Public Access Collections (Science.gov)
To improve the discoverability of publications across federal agency repositories, Science.gov created this well-annotated inventory of Application Programming Interfaces (APIs) and other services provided by each U.S. Government agency. APIs simplify programming, help to support application interoperability, and facilitate the machine-to-machine discovery of public access content by third parties and additional real-time search offerings.
U.S. Census Bureau Data and APIs
This UMKC Libraries' Research Guide provides links to resources to learn more about Census data structure and organization, and how to access Census data via an API.

U.S. Government Agency Data Catalogs

While much of this data may be found through Data.gov, you can search these agency catalogs directly.

Bureau of Ocean Energy Management Data Center
Bureau of Safety and Environmental Enforcement Data Center
Data.CDC.gov - Centers for Disease Control and Prevention
Data.Census.gov - U.S. Census Bureau
Centers for Medicare and Medicaid Services Data
U.S. Department of Agriculture Open Data Catalog
This catalog is the authoritative source of publicly available USDA data.
U.S. Department of Commerce Data Hub
U.S. Department of Defense Open Government Data
Federal Aviation Administration Data Portal
Federal Deposit Insurance Corporation (FDIC) Bank Data Guide
Federal Emergency Management Agency (FEMA) OpenFEMA
FEMA collects vast amounts of data on multiple aspects of emergency management — Disaster Information, Individual Assistance, Public Assistance, Hazard Mitigation, National Flood Insurance Program (NFIP), and Grants. Data sets are available for download, along with an application programming interface (API) that provides data in an easily digestible, machine readable format.
U.S. Global Change Research Program (USGCRP) Global Change Information System
data.HealthCare.gov
Health Resources & Services Administration Data and Maps
U.S. Department of Housing and Urban Development Data Sets
Medicaid and CHIP Open Data
DATA.NASA.GOV
National Institutes of Health (NIH) Scientific Data Sharing: Accessing Data
Browse the many NIH-affiliated repositories and learn how to access datasets.
National Institute of Standards and Technology (NIST) Science Data Portal
National Oceanic and Atmospheric Administration (NOAA) Data Discovery Portal
NOAA NCEI (National Centers for Environmental Information)
NCEI maintains one of the most significant archives on Earth, with comprehensive oceanic, atmospheric, and geophysical data.
National Renewable Energy Laboratory (NREL) Data Catalog
USASpending.gov
USAspending is the official open data source of federal spending information, including information about federal awards such as contracts, grants, and loans.
U.S. Geological Survey (USGS) Science Data Catalog
USGS Earthquake Hazards Program
Provides data for earthquakes, earthquake engineering, natural hazard mitigation, and related topics.

Substantially adopted, with some additions, from Table 14.1 in the book Mastering United States Government Information: Sources and Services, by Christopher C. Brown.

U.S. Legislative Data from Other Authoritative Sources

Voteview
Voteview allows users to view every congressional roll call vote in American history on a map of the United States and on a liberal-conservative ideological map including information about the ideological positions of voting Senators and Representatives.
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This project was made possible by support from The William and Flora Hewlett Foundation (Grant #2016-3870), the National Science Foundation (NSF-SBS-0611974), UCLA Social Science Computing and the University of Georgia. Some open source components used under license.

STEM Data Repositories and Data Sets

Finding U.S. Government Data

Using Google to Find Government Datasets

Application Programming Interfaces (API) to Government Data

U.S. Government Agency Data Catalogs

U.S. Legislative Data from Other Authoritative Sources

Miller Nichols Library

Giving to the Libraries