My mother must have gotten some long form. She said they wanted to know her income, how much her utilities were...and on and on. I think how much taxes she pays. I can’t remember them all but, sounds like there was a bunch.
That sounds like the American Community Survey. The Census Bureau took so much flak at giving the long form to 1/6 of the households in 2000, they decided to sneak it through a few hundred thousand households per month. If you don't answer it they'll send you a second one and a letter. Then the second month they will call you. Then during the third month a fraction of those who haven't turned it in will get personal visits. Then after that they go away.