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.
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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.
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The Census Bureau packages data and information into easy-to-understand visuals.
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Developer portal to access services and documentation for the Census Bureau's APIs.
Explore Census Bureau data on your mobile device with interactive tools.
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These external sites provide more data.
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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.
Information about the current field vacancies available at the U.S. Census Bureau Regional Offices.
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.
The U.S. Census Bureau continuously makes improvements to the American Community Survey (ACS) in an ongoing effort to best meet the needs of its data users. In 2008, this included several changes designed to improve the content and data quality of the ACS and provide new tools and resources for data users. Here is a summary of what is new since the 2007 data release:
Improvements to the 2008 ACS Questionnaire: The Census Bureau worked closely with the Interagency Committee for the ACS to update the content of the ACS questionnaire by adding required new content and improving the accuracy and reliability of existing questions. The proposed changes went through cognitive testing followed by field testing in the 2006 ACS Content Test. As a consequence of this testing, the 2008 ACS included new questions on marital history, health insurance coverage, and service-connected disability status and ratings and modifications to several existing questions, including major changes to the disability questions. An overview of the changes that were made to the questionnaire and the impact on the estimates that were observed in the 2006 ACS Content Test is available in the New and Modified Content on the 2008 ACS Questionnaire: Results of Testing Prior to Implementation. A comprehensive report for each item tested on the 2006 ACS Content Test is also available. To view, see 2006 Content Test Report Series.
Changes to the 2008 ACS 1-Year Data Products: Similar to last year, there are approximately 260 changes in the 2008 ACS 1-year data products on a base of roughly 1,600 tables. This includes the addition of roughly 100 new tables, the modification of roughly 50 existing tables, and the removal of roughly 100 existing tables. Most of these changes are in response to improvements to the 2008 ACS questionnaire and changes to tabulated categories for select topics.
For more information on the changes to the 2008 data products, see 2008 Data Product Changes
New Economic Briefs: The Census Bureau is introducing a series of briefs spotlighting the economic characteristics of the nation, states, District of Columbia, and Puerto Rico using data from the 2008 ACS 1-year estimates. The briefs cover the following topics:
Quality Measures: The Census Bureau has updated the Quality Measures section of the ACS website to include national and state level quality measures for the 2007 and 2008 1-year estimates, joining the existing quality measures for the 2000 ACS through the 2006 ACS. The quality measures include sample sizes, coverage rates, response rates, and item allocation rates. We will continue to provide both 1-year and 3-year quality measures at the national, state, and, for selected measures, county level on American FactFinder in the B98 series of Detailed Tables.
Improvements to Downloaded Tables from American FactFinder (AFF): The "+/-" sign in the Margin of Error (MOE) column of all ACS data products will be removed, including those for previous years. The MOE column header will read "Margin of Error (+/-)." This will allow users who download tables from AFF the opportunity to easily perform calculations. This feature is only available in the downloaded files and will not change the table presentation when viewed in AFF.
The ACS Compass Products: Educational materials are available to help users better understand and appropriately use ACS data. These materials include user-specific handbooks, fully scripted PowerPoint presentations, and an e-learning tutorial. Each handbook is designed to instruct and provide guidance to a particular audience. Currently, there are 11 handbooks available for download. The PowerPoint Presentations cover various ACS topics and are designed to promote self-learning. A web-based tutorial is planned for release in 2010 and will provide user-friendly training on the ACS, including "how to" demonstrations of accessing ACS data products in American FactFinder. To access these educational materials, see The ACS Compass Products.
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