The 1940 United States Census will be released online on April 2, 2012 at 9:00 a.m. EST.
Bookmark this link for access - 1940census.archives.gov
This is where you will be able to access the digitized census records starting on April 2. The digital images will be accessible free of charge at NARA facilities nationwide through our public access computers as well as on personal computers via the internet.
The National Archives has some great information about the census and how to use it.
Part 1: General Information
• FAQs about the 1940 Census
• 1940 Census Forms
• Questions Asked on the 1940 Census
• Selected List of Codes
• 1940 Census Lectures by NARA staff nationwide
Part 2: How to Start Your 1940 Census Research
Part 3: Finding Aids
• Geographic Descriptions of Census Enumeration Districts
• Enumeration District Maps
• Abridged Instructions to the Enumerator
• Complete Instructions to the Enumerator (7.87 MB)
• Occupation and Industry Classifications(12.1 MB)
• 1940 City Directories at NARA
• Find Census Enumeration District Numbers using Stephen P. Morse's Search Engines
Part 4: Videos
Part 5: Articles and Online Data
Part 6: Information for Libraries, Genealogical Organizations, and other Organizations
For more information, contact us at 1940Census@nara.gov