With the 2010 Census coming a lot of people have a lot of questions about this process. Republican Congresswoman Michele Bachman (MN) says her family will only participate in the actual enumeration portion of the Census. Shelly Lowe of the Census Bureau say Bachman is reading the law wrong. Let's take a look at that statement. Nowhere in the Constitution is the the word "census" mentioned. Nowhere. Article 1 Section 2 Clause 3 calls for an actual enumeration of the people to establish congressional numbers and calls for this count to be done every 10 years. So in effect when Lowe says the law is being interpreted wrongly she is referring to an unconstitutional law. As we all know if a law is contrary to the Constitution it is no law. This article explains in more detail. Here is a statement that tells it like it is.
"The General rule is that an unconstitutional statute, though having the form and name of law, is in reality no law, but is wholly void, and ineffective for any purpose; since unconstitutionality dates from the time of its enactment, and not merely from the date of the decision so branding it.
"No one is bound to obey an unconstitutional law and no courts are bound to enforce it"
(16 Am Jur 2d, Sec 177 late 2d, sec 256)
So really all you have to answer is how many people live at your address. And that is all I will answer.