I’m not a Constitutional scholar, but my understanding of the census is to “enumerate” for the purpose of apportioning representation in the House. Here’s the text:

The actual Enumeration shall be made within three Years after the first Meeting of the Congress of the United States, and within every subsequent Term of ten Years, in such Manner as they shall by Law direct.

I have absolutely no problem with that, but for the life of me can’t quite grasp the value of knowing how many toilets I have when it comes to apportioning representation.

(Unless Congress wants to know how many ways I have to flush the crap they send out.)