March 2010 - Census forms are mailed or delivered to households
April 1, 2010 - National Census Day—use this day as a point of reference for sending your completed forms back in the mail
April - July 2010 - Census takers visit households that did not return a form by mail
December 2010 - By law, the Census Bureau delivers population information to the President for apportionment
March 2011 - By law, the Census Bureau completes delivery of redistricting data to states