The U.S. Constitution mandates a census of the population every ten years. The census is vitally important for many reasons but the constitutional purpose is to obtain an accurate count of the population so that district lines can be drawn for Congress and the state legislature. An accurate census count is an important component of redistricting. You can help! Mail in your forms and be counted!
Why is the census so important? Why is it necessary for everybody to be counted?
The House of Representatives uses census data to allocate over 400 billion dollars of federal money annually for infrastructure projects like new schools and hospitals, highways and bridges. Local communities can use census data to promote action from government agencies like environmental protections, services for seniors or affordable housing.
Learn more  about how the census benefits your community.
Check out Quick Facts  about census data from communities in California since the 2000 census.
The 2010 US Census count is now complete. The Census Bureau is processing the data received. On December 31, 2010 the total population of the United States will presented to the President. The data received from the 50 states will be used to refigure the number of Congressional seats each state will receive for the next 10 years. This is called reapportionment. Some states will gain Congressional seats and some will lose seats. But all states must have at least one seat in the House of Representatives.
The Census bureau will also calculate the population of each state and deliver the data to each state. California should receive its information by April 1, 2011. These numbers will be given to the Statewide Database, which is the Redistricting Database for the state of California http://swdb.berkeley.edu/.  The numbers will be processed and given to the Citizens Redistricting Commission wheic will redraw the district lines for the state Legislature and Board of Equalization and to the state Legislature which will redraw the district lines for California’s Congressional seats.