USGenWeb Free Census Project Help, Federal Census from 1940 - Present
According to the National Archives and Records Administration the 1940 and later censuses are not available to the public use due to a statutory 72-year restriction on access for privacy reasons. (92 Stat. 915; Public Law 95-416; October 5, 1978).
The 1940 Census will be released on Monday, April 2, 2012. For more details visit, 1940 Census at the Census Research for Genealogists web site.
To make application (named person, family or legal representatives only) for this restricted information, visit the United States Census Bureau "age search" service where they will "search the confidential records from the Federal population censuses of 1940 to 1990 and issue an official transcript of the results (for a congressionally mandated fee)."