Work with interactive mapping tools from across the Census Bureau.
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.
Information about the U.S. Census Bureau.
Information about what we do at the U.S. Census Bureau.
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 U.S. 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.
Find media toolkits, advisories, and all the latest Census news.
See what's coming up in releases and reports.
Contact: Robert Bernstein
Public Information Office
The U.S. Census Bureau today released July 1, 2009, population estimates for each of the nation's 3,143 counties by race, Hispanic origin, age and sex.
The estimates are based on 2000 Census data and updated by using administrative records to estimate components of population change — namely births, deaths, and domestic and international migration. Annual estimates for the 2000 to 2009 period are provided.
The new estimates are not 2010 Census population counts. They are, however, the last such estimates to use 2000 Census results as a base.
The 2011 population estimates will be the first in the estimates series to be based on the 2010 Census population counts.
In December, the Census Bureau will release the official population counts for the nation and states. The 2010 Census state population totals will be used to apportion seats in the U.S. House of Representatives. By April 1, 2011, the Census Bureau must release race and Hispanic origin counts for counties, cities and smaller geographic areas so that states can proceed with redistricting.
“Census numbers govern the distribution of more than $400 billion in federal funds each year and serve as the baseline for future post-census population estimates,” Census Bureau Director Robert Groves said. “The census provides a clear and detailed picture of our communities, including their changing demographic characteristics.”
Also released today were July 1, 2009, population estimates by age and sex for Puerto Rico municipios.