Introducing a new way to navigate by topics. Access the latest news, data, publications and more around topics of interest.
Our population statistics cover age, sex, race, Hispanic origin, migration, ancestry, language use, veterans, as well as population estimates and projections.
This section provides information on a range of educational topics, from educational attainment and school enrollment to school districts, costs and financing.
We measure the state of the nations workforce, including employment and unemployment levels, weeks and hours worked, occupations, and commuting.
Our statistics highlight trends in household and family composition, describe characteristics of the residents of housing units, and show how they are related.
Health statistics on insurance coverage, disability, fertility and other health issues are increasingly important in measuring the nation's overall well-being.
We measure the housing and construction industry, track homeownership rates, and produce statistics on the physical and financial characteristics of our homes.
The U.S. Census Bureau is the official source for U.S. export and import statistics and regulations governing the reporting of exports from the U.S.
The U.S. Census Bureau provides data for the Federal, state and local governments as well as voting, redistricting, apportionment and congressional affairs.
Search an alphabetical index of keywords and phrases to access Census Bureau statistics, publications, products, services, data, and data tools.
Geography provides the framework for Census Bureau survey design, sample selection, data collection, tabulation, and dissemination.
Geography is central to the work of the Bureau, providing the framework for survey design, sample selection, data collection, tabulation, and dissemination.
Find resources on how to use geographic data and products with statistical data, educational blog postings, and presentations.
The Geographic Support System Initiative will integrate improved address coverage, spatial feature updates, and enhanced quality assessment and measurement.
Work with interactive mapping tools from across the Census Bureau.
Find geographic data and products such as Shapefiles, KMLs, TIGERweb, boundary files, geographic relationship files, and reference and thematic maps.
Metropolitan and micropolitan areas are geographic entities used by Federal statistical agencies in collecting, tabulating, and publishing Federal statistics.
Find information about specific partnership programs and learn more about our partnerships with other organizations.
Definitions of geographic terms, why geographic areas are defined, and how the Census Bureau defines geographic areas.
We conduct research on geographic topics such as how to define geographic areas and how geography changes over time.
Visit our library of Census Bureau multimedia files. Collection formats include audio, video, mobile apps, images, and publications.
Collection of audio features and sound bites.
The Census Bureau packages data and information into easy-to-understand visuals.
Browse Census Bureau images.
Read briefs and reports from Census Bureau experts.
Watch Census Bureau vignettes, testimonials, and video files.
Read research analyses from Census Bureau experts.
Access data through products and tools including data visualizations, mobile apps, interactive web apps and other software.
Developer portal to access services and documentation for the Census Bureau's APIs.
Explore Census Bureau data on your mobile device with interactive tools.
Find a multitude of DVDs, CDs and publications in print by topic.
These external sites provide more data.
Download extraction tools to help you get the in-depth data you need.
Learn more about our data from this collection of e-tutorials, presentations, webinars and other training materials. Sign up for training sessions.
Explore Census data with interactive visualizations covering a broad range of topics.
Learn how we serve the public as the most reliable source of data about the nation's people and economy.
How we provide the best mix of timeliness, relevancy, quality, and cost for the data we collect.
Our researchers explore innovative ways to conduct surveys, increase respondent participation, reduce costs, and improve accuracy.
Our surveys provide periodic and comprehensive statistics about the nation, critical for government programs, policies, and decisionmaking.
Learn about other opportunities to collaborate with us.
Explore the rich historical background of an organization with roots almost as old as the nation.
Explore prospective positions available at the Census Bureau.
Explore Census programs targeted for particular needs.
Discover the latest in Census Bureau data releases, reports, and events.
The Census Bureau's Director writes on how we measure America's people, places and economy.
Find interesting and quirky statistics regarding national celebrations and major events.
Listen to audio files on fun facts, historical figures, and celebrations of the month.
Find media toolkits, advisories, and all the latest Census news.
See what's coming up in releases and reports.
Purpose: The purpose of this standard is to ensure that statistical analyses‚ inferences‚ and comparisons used to develop information products are based on statistically sound practices..
Scope: The Census Bureau's statistical quality standards apply to all information products released by the Census Bureau and the activities that generate those products‚ including products released to the public‚ sponsors‚ joint partners‚ or other customers. All Census Bureau employees and Special Sworn Status individuals must comply with these standards‚ including contractors and other individuals who receive Census Bureau funding to develop and release Census Bureau information products.
In particular‚ this standard applies to the analyses performed to generate information products. It includes analyses:
The global exclusions to the standards are listed in the Preface. No additional exclusions apply to this standard.
Key Terms: Bonferroni correction‚ cluster‚ covariance‚ direct comparison‚ goodness–of–fit‚ hypothesis testing‚ implied comparison‚ multivariate analysis‚ outliers‚ parameter‚ peer review‚ regression‚ sample design‚ Scheffe’s method‚ sensitivity analysis‚ significance level‚ statistical inference‚ and Tukey’s method.
Requirement E1–1: Throughout all processes associated with analyzing data‚ unauthorized release of protected information or administratively restricted information must be prevented by following federal laws (e.g.‚ Title 13‚ Title 15‚ and Title 26)‚ Census Bureau policies (e.g.‚ Data Stewardship Policies)‚ and additional provisions governing the use of the data (e.g.‚ as may be specified in a memorandum of understanding or data–use agreement). (See Statistical Quality Standard S1‚ Protecting Confidentiality.)
Requirement E1–2: A plan must be developed prior to the start of the analysis that addresses‚ as appropriate:
Requirement E1–3: Statistically sound practices that are appropriate for the research questions must be used when analyzing the data.
Examples of statistically sound practices include:
Sub–Requirement E1–3.1: The data analysis must account for the sample design (e.g.‚ unequal probabilities of selection‚ stratification‚ and clustering) and estimation methodology.
Requirement E1–4: Any conclusions derived from sample data must be supported by appropriate measures of statistical uncertainty.
Examples of measures of statistical uncertainty that support conclusions include:
Note: Although the p–value does not indicate the size of an effect (or the size of the difference in a comparison)‚ p–valuse below 0.01 constitute strong evidence against the null‚ p–values between 0.01 and 0.05 constitute moderate evidence‚ and p–values between 0.05 and 0.10 constitute weak evidence.
Sub–Requirement E1–4.1: The same significance level or confidence level must be used throughout an analysis. Table A shows the requirements for specific information products:
Table A: Significance and Confidence Levels by Information Product
|Information Product||Significance Level||Confidence Level|
|Census Bureau publications||0.10||0.90|
|All other information products (e.g.‚ working papers‚ professional papers‚ and presentations)||0.10 or less||0.90 or more|
Requirement E1–5: The data and underlying assumptions must be appropriate for the analyses and the accuracy of the computations must be verified.
Examples of activities to check the appropriateness of the data and underlying assumptions and the accuracy of the computations:
Requirement E1–6: Documentation needed to replicate and evaluate the analysis must be produced. The documentation must be retained‚ consistent with applicable policies and data–use agreements‚ and must be made available to Census Bureau employees who need it to carry out their work. (See Statistical Quality Standard S2‚ Managing Data and Documents.)
Examples of documentation include: