Data.gov

Data.gov is the United States government's open-data portal, launched in late May 2009 by the first federal chief information officer, Vivek Kundra, to improve public access to high-value, machine-readable datasets generated by the Executive Branch. The site catalogs federal, state, local, and tribal government information made available to the public.^[2][3].

Managed and hosted by the U.S. General Services Administration's Technology Transformation Services, the catalog listed 552,276 datasets as of August 2026.^[1][2] Its stated mission is to inform decisions by the public and policymakers, drive innovation and economic activity, and strengthen an open and transparent government.^[1]

What It Does

Data.gov operates as a metadata catalog: agencies publish descriptions and links for their datasets in a searchable index at catalog.data.gov, with tools for research, application development, and data visualization. The catalog supports filters for geospatial data, organization, popularity, and recent additions.^[1]

The site publishes usage metrics on dataset page views, file downloads, and external link clicks broken down by agency, and it is developing a next-generation catalog alongside the current one.^[1]

History

Announced on March 5, 2009 by CIO Vivek Kundra and launched on May 30, 2009 with 47 datasets, Data.gov introduced digital open-data philosophy to the U.S. federal government. By 2014, all 175 federal agencies and 77 other organizations had published data on the site with open APIs, and the catalog had grown to hundreds of thousands of datasets.^[2]

The December 2009 Open Government Directive required agencies to post at least three high-value datasets and register them on Data.gov within 45 days. In 2013, President Obama's executive order "Making Open and Machine Readable the New Default for Government Information" formalized Data.gov as the permanent repository for open government data, and on January 14, 2019 the OPEN Government Data Act (Title II of the Foundations for Evidence-Based Policymaking Act) made agency participation a statutory requirement rather than a policy.^[2]

Buyers And Use Cases

There is no pricing: all catalog data is free. Documented users include civil-society groups, businesses, and researchers; by 2012 open data from Data.gov was regularly used in hackathons such as Code for America's National Day of Civic Hacking, and the GovLab created the Open Data 500 to showcase businesses built on the platform's data.^[2]

For alternative-data practitioners, Data.gov functions primarily as a discovery layer pointing to agency sources, such as FRED for macroeconomic series or FiscalData for federal spending, rather than as a real-time feed itself.

Compliance And Continuity

McKinsey research cited in connection with the platform has estimated open data's contribution to the U.S. economy in the trillions of dollars, with GPS and National Weather Service data among the largest contributors by economic impact.^[2]

The catalog's composition is subject to political change: in January 2025, following the presidential inauguration, more than 2,000 datasets were removed from the website, prompting archivists to work on preserving disappearing datasets.^[2]