Here are five key facts about the 2010 Census and links to basic information about it:

• The Census Bureau expects to count 310 million U.S. residents.
• The count begins in Alaska on Jan. 25, but most Americans receive their forms in March.
• The 2010 Census form has 10 questions for the person who fills it out, and seven additional questions for each other person in the household.
• Census forms are available in six languages (English, Spanish, Chinese, Korean, Vietnamese and Russian); guides to the questions are available in 59 languages.
• The census determines how many seats each state will have in the U.S. House of Representatives, and guides the allocation of more than $400 billion in federal funds each year.

Here is where you can find:

• The 2010 Census questionnaire.

• Reasons why the Census Bureau asks each question.

• The 2010 Census timetable.

• A history of the decennial census.