http://www.census.gov/2010census/

National census day is April 1, 2010.

In the news

Detailed Census 2010 data was released for Michigan on Tuesday. In Washtenaw County, the population grew from 322,895 people in 2000 to 344,791 people in 2010. The population of Ann Arbor dropped 0.6% to 113,934.

In 2000, the lowest Census response rates in Ann Arbor were in student neighborhoods. The city had an overall participation rate of 78 percent in 2000, while the statewide average in Michigan was 77 percent. "Students are really hard to follow up with," said Lisa Neidert, a senior research associate with U-M's Population Studies Center. "They're transient populations, so you really have to get them when you can."