Work with interactive mapping tools from across the Census Bureau.
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.
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.
Explore Census data with interactive visualizations covering a broad range of topics.
How we provide the best mix of timeliness, relevancy, quality, and cost for the data we collect.
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.
In March 1998, the Census Bureau began working with local participants to delineate their statistical areas according to the criteria provided. In the PDF below you can review the Census 2000 boundary criteria that were used to define census tracts, census block groups (BGs), census county divisions (CCDs), and census designated places (CDPs) for the Census 2000 Participant Statistical Areas Program. A formal and more detailed description of these criteria were published in the Federal Register Notice. For more information, please refer to the appropriate Federal Register citation listed at the end of each section of the PDF.
For more information about the Census Bureau's statistical areas, geographic concepts or terminology, please reference the Geographic Areas Reference Manual, published by the U.S. Census Bureau.