USASpending.gov is the official U.S. government portal for detailed federal spending data. It provides searchable information on contracts, grants, loans, and other financial assistance, including amounts, recipients, and agency allocations. This resource supports transparency, fiscal research, and analysis of government funding patterns.

Federal Enterprise Data Resources is a central catalog of U.S. federal open data assets and tools. It aggregates links to datasets, APIs, standards, and guidance from across federal agencies to help users discover and access government data. This resource supports data reuse, interoperability, and transparency across government and research communities.

Data.gov is the federal government's open data site, and aims to make government more open and accountable. Opening government data increases citizen participation in government, creates opportunities for economic development, and informs decision making in both the private and public sectors.

Data.gov Catalog is the searchable repository of open datasets published by the U.S. federal government. It provides access to thousands of datasets on topics such as health, environment, education, economy, and public safety, along with metadata and download options. This resource supports data discovery, analysis, and transparency for researchers, policymakers, and the public.

The Census Bureau's Population Estimates Program (PEP) produces estimates of the population for the United States, states, metropolitan and micropolitan statistical areas, counties, cities, towns, as well as for Puerto Rico and its municipios.

The International Programs Center advances data-driven decision making through tools, capacity strengthening, and data products for the global statistical community.

NCSES Data Explorer is an interactive platform from the National Center for Science and Engineering Statistics for searching, visualizing, and downloading federal science and engineering data. It allows users to explore statistics on research and development spending, STEM workforce characteristics, innovation metrics, and other key indicators. The tool supports researchers, policymakers, and analysts in generating custom views, tables, and charts to inform science and technology research and decision-making.

The National Center for Education Statistics (NCES) is the primary federal agency that collects, analyzes, and disseminates data related to education in the United States. Operating within the U.S. Department of Education and the Institute of Education Sciences, NCES produces official statistics on school enrollment, academic achievement, graduation rates, educational attainment, finances, and post-secondary outcomes through surveys and administrative data systems.

The NCES website offers access to data tables, interactive tools, downloadable datasets, reports, and documentation. Its statistics support research, policy analysis, program evaluation, and planning across federal, state, and local education systems, as well as use by educators, researchers, and the public.

Institute of Education Sciences Data Tools is a suite of interactive interfaces provided by the U.S. Department of Education’s research agency. It offers searchable access to education statistics and research datasets on topics such as student performance, school finances, postsecondary outcomes, and assessment results. These tools help educators, researchers, and policymakers explore, query, and download education data for analysis and planning.

The National Center for Health Statistics (NCHS) is the principal federal agency within the U.S. Centers for Disease Control and Prevention (CDC) responsible for collecting, analyzing, and publishing data on the health of the U.S. population. NCHS produces official statistics on topics including mortality and life expectancy, births and fertility, disease prevalence, health behaviors, health insurance coverage, and health care utilization through surveys (such as NHIS, NHANES), vital statistics systems, and administrative data.

The NCHS website provides access to data tables, interactive tools, downloadable microdata and summary datasets, reports, and technical documentation. Its statistics are widely used by policymakers, public health professionals, researchers, and other stakeholders to monitor health trends, assess disparities, evaluate public health programs, and inform evidence-based decisions in health policy and planning.

NCHS Data and Analysis Tools is the National Center for Health Statistics’ collection of interfaces and systems for accessing U.S. health data. It includes query tools, analysis systems, and visualization platforms for topics such as mortality, disease prevalence, health surveys, and vital statistics. These tools support researchers, public health professionals, and policymakers in exploring and analyzing official health data.

NCHS Data Dashboards, Visualizations, and Query Systems provides interactive health data tools from the National Center for Health Statistics. It includes dashboards and query interfaces for exploring survey results, vital statistics, health indicators, and population health trends. These resources help users visualize and analyze official health data for research, public health planning, and policy assessment.