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.
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.
Phase I: Overview of Medicare and Medicaid Files
In Phase I, a national database of health insurance information is created and evaluated. The CMS Medicaid Statistical Information System (MSIS) files are merged with the CMS Medicare (EDB) files. We assess our ability to accurately merge the input files and compare the characteristics of the individuals in the database to expectations based on Medicaid eligibility rules and characteristics of the U.S. population.
Phase II: Comparing MSIS and the CPS ASEC, 2001-2002
In Phase II, the Medicaid Analytic Extract (MAX), MSIS, the Current Population Survey Annual Social and Economic Supplement (CPS ASEC), the Person Characteristic File (PCF), and the Master Address File Auxiliary Reference File (MAF-ARF) are used to determine matches (and non-matches) between the MSIS and CPS ASEC. Matched records are supplemented with information from the MAX and discrepancies between MSIS records of enrollment and CPS reports of Medicaid coverage are analyzed. The MAF-ARF and PCF are used to augment the analysis.
Phase III: Refinements in MSIS CPS ASEC Comparison
In Phase III, data from the state MSIS files, CPS ASEC, 2001 American Community Survey Supplemental Survey (ACS/SS01), MAX, and Master Address File (MAF) are used. Collaborating with CMS, Census Bureau acquired state MSIS files to enhance and evaluate the survey-administrative record matching process. Frame coverage is analyzed to determine if frame differences (i.e., incomplete identification of individuals) affect the substantive conclusions of the analysis.
Phase IV: Comparing MSIS and NHIS, 2001-2002
In Phase IV, the Phase II process is replicated using NHIS data instead of CPS ASEC data. In addition to providing explanations for discrepancies between the national NHIS and MSIS, Phase IV results allow the examination of how survey design and implementation affect the quality of the resulting survey data and the estimates derived from it.
Phase V: Comparing MSIS and the CPS ASEC, 2003-2004
Phase V is a repeat of Phase II with later years of the CPS. The intent of this Phase is to see if the discrepancy measured and explained in Phase II changes noticeably in the size or the relationship to explanatory factors from 2000 and 2001 to 2002 and 2003.
Phase VI: Comparing MSIS and MEPS
Phase VI replicates the Phase II process but uses the calendar year 2003 Medical Expenditure Panel Survey (MEPS) data. The intent of Phase VI is to determine how the MEPS estimate of the number of Medicaid enrollees compare to the count from National MSIS as well as to determine factors associated with false-negative response about Medicaid in MEPS.