[devane617]

This happened to me about a year ago. Someone may know but there is a special census that is very detailed and although rare it happens. Someone eft6 cards on my door fr a few weeks trying to contact me. I will see if I can locate the details.

[fwdude]

You're referring to the American Community Survey, which is an ongoing questionnaire which happened throughout the years between the decennial census. It is a mailed survey form, and should not involve a person intruding into your home.

The constitutionality of the ACS is questionable.

[kiryandil]

It would be the ACS [American Community Survey].

Call your local Census office if you can't get the name of the purported Census worker who was at your mother's house.

https://www.census.gov/programs-surveys/acs