As forms for the 2010 U.S. Census arrive in households across the nation this week, a new Pew Research Center survey finds that nearly nine-in-ten Americans (87%) now say they definitely or probably will fill out and return their forms, or have already done so. This represents a six-point increase in likely participation since an earlier survey released in January.

However,  younger people and those with lower levels of  income and education are less likely than others to say they definitely will participate. The survey also finds differing views about the importance of the census and its possible benefits.