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.
The SAHIE interactive map tool is a Flash-based tool for data visualization purposes. This map tool is intended to deliver more dynamic and interactive content and provide a better end-user experience. To view this application your system must have the Adobe Flash Player version 10.x or higher installed and is best viewed using 1024 x 768 pixels screen resolution or higher.
Please download the latest free Adobe Flash player if it is not installed.
The core functionality with this application is to provide the end-user with an interactive map to display estimates of health insurance coverage, or lack of, as thematic maps. Estimate maps for each geographic level (state and county) and demographic group (age, race, sex, and income categories) are classified and colored dynamically using an equal interval algorithm. The interactive components are comprised of mouse over tool tip windows to display contextual information, dynamically linked tabular data, navigation tools to zoom in and zoom out, and multiple background images such as satellite imagery, street maps, and elevation to overlay census data and geography.
Cartographic generalization was applied to simplify and smooth line work; therefore, shapes may not represent exact boundaries.
U.S. Census Bureau's TIGER database
Health Insurance Coverage Estimates:
U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE) ProgramSoftware
The application was developed using the Adobe Flex 4.0 framework, ArcGIS API for Flex 2.2 and ESRI ArcGIS server 10 on Red Hat Linux.
General User Notes
The accessible data files used in this mapping tool are available at:
Details may not sum to totals and percents because of rounding. The percents were calculated before any rounding occurred. Rounding error will be more prominent for small counties.A margin of error (MOE) is the difference between an estimate and its upper or lower confidence bounds. Confidence bounds can be created by adding the margin of error to the estimate (for an upper bound) and subtracting the margin of error from the estimate (for a lower bound). All published margins of error for the Small Area Health Insurance Estimates program are based on a 90 percent confidence level.
The Small Area Health Insurance Estimates (SAHIE) derived surface was produced using spline interpolation. A spline interpolation uses a set of values located at specific points, and creates a continuous surface over a given area. In this case, the percent-uninsured population under age 65 is interpolated from the geometric center of counties.
The applied spline interpolation method constrains interpolation to values inside respective states. In this way, state surface comparisons can be made.
The map symbology uses a minimum-maximum stretched color ramp centered on the mean uninsured rate for the population under age 65 for all years. In this way, the color scheme is normalized for all years, so year-to-year changes are a result of changes in the uninsured population, not changes to the symbolized value range. The map symbology allows for quick interpretation of difference from the mean. Hot colors are above the mean, while cooler colors are below it.
Contiguous states: US Contiguous Lambert Conformal Conic
Alaska: North America Datum (NAD) 1927 Alaska Albers
Hawaii: North America Datum (NAD) 1983 State Plane Hawaii FIPS 1
Interpolated surfaces create bias where values are calculated across large distances, and should be interpreted with caution; however, the surface illustrates a discernible spatial pattern to health insurance related to local phenomenon.