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 Statistics of Income (SOI) program is managed by the Internal Revenue Service (IRS) and produces official statistical information derived from tax returns filed by individuals and businesses in the United States. SOI publishes detailed data on income, deductions, tax liabilities, credits, and distributions across income groups, industries, and geographic areas. Its products cover topics such as individual and corporate income tax statistics, estate and gift tax data, and patterns of income reporting.

The SOI portal provides access to tables, historical series, publications, and electronic datasets that are used by researchers, economists, policymakers, and analysts for economic and fiscal analysis, tax policy evaluation, distributional studies, and revenue forecasting. Because SOI statistics reflect actual tax filings, they are a key source for understanding income distribution and the tax system’s impact on economic and social outcomes.

IRS Tax Statistics is the Internal Revenue Service’s central portal for official tax data and analysis derived from federal tax returns. It includes tables, publications, and downloadable datasets on income, tax liabilities, deductions, credits, and filing patterns for individuals and businesses. These statistics support economic research, tax policy analysis, and fiscal planning.

The official website of the U.S. Census Bureau, providing access to demographic, economic, and geographic data about the United States, including population counts, housing statistics, business data, and survey results used for research, policy, and planning.

The 2020 Census conducted a count of residents of the United States and five U.S. territories. It marked the 24th census in U.S. history and the first time that all households were invited to respond to the census online.

The 2026 Census Test is the U.S. Census Bureau's first major opportunity to try out new tools and methods in two locations around the United States. This operational test in support of the 2030 Census will help us improve how we will count everyone in the country in 2030.

Planning for the 2030 Census began in 2019. We are now in the Development and Integration Phase. This phase focuses on ongoing research, testing (including the 2026 Census Test and the 2028 Dress Rehearsal), adjustments based on results of testing, and, lastly, continuing operational planning. This work enables an efficient and accurate count in 2030.

The 2030 Census will count residents of the United States and five U.S. territories and will mark the 25th population count in the United States.

The data collected by the census is used to determine the number of seats each state has in the U.S. House of Representatives (a process called apportionment) and is also used to adjust or redraw electoral districts based on where populations have increased or decreased. The results also inform decisions about allocating hundreds of billions of dollars in federal funding to communities across the country—for hospitals, fire departments, schools, roads, and other critical programs and services.

The American Community Survey (ACS) is the premier source of detailed information about the nation's people and housing. As an ongoing survey conducted by the U.S. Census Bureau since 2005, the ACS collects detailed social, economic, housing, and demographic information from a sample of households across the 50 states, the District of Columbia, and Puerto Rico.

The ACS provides up-to-date information annually, which helps local officials, community leaders, and businesses make informed decisions.

Covering more than 40 topics—including education, employment, income, housing, and transportation—the ACS provides crucial insights into the changing needs and conditions of communities. Its data are used for countless reasons, such as to plan roads, schools, and emergency services, and to guide the distribution of government funding.

The AHS is sponsored by the Department of Housing and Urban Development (HUD) and conducted by the U.S. Census Bureau. The survey is the most comprehensive national housing survey in the United States.

The ABS Program combines data results from survey respondents and administrative records to produce data on business ownership. The survey is collected from employer businesses and the nonemployer data are compiled from administrative records.

The Annual Integrated Economic Survey (AIES) is a re-engineered survey designed to integrate and replace seven existing annual business surveys into a streamlined single survey. The reporting window for the 2024 AIES has closed. The U.S. Census Bureau began releasing 2023 AIES data on a flow basis beginning in summer 2025.

County Business Patterns (CBP) is an annual series that provides subnational economic data for establishments with paid employees by industry and employment size. This series includes the number of establishments, employment during the week of March 12, first quarter payroll, and annual payroll.