If you don't send back your form, you may receive a visit from a census taker. If a census taker visits you, here's what you should do:
First ask to see their ID. All census workers carry official government badges marked with just their name; they may also have a "U.S. Census Bureau" bag
Note that the census taker will never ask to enter your home If you're still not certain about their identity, please call the Regional Census Centers to confirm they are employed by the Census Bureau.
Answer the census form questions for your entire household (you must be at least 15 years old to answer questions) so that the census taker can record the results for submission to the Census Bureau.
Census takers visit local homes several times to capture resident information for the 2010 Census. If you prefer, you can schedule a visit with your census taker. Should the census taker come when you are away from your home, they will leave a contact number. If a census taker has not visited your home or you have a question about your participation with the census, call your Census Office,
Feel free to visit the 2010 Census Website for more information