Yeah they came by daily for about 4 months. They weren’t smart enough to discover my phone #. Because I live outside of town, here in AK I have no mail delivery to my house, and they never sent a notice to my PO Box. So the routine was the same every day: I would drive home and see a car parked down the road. I would drive into my garage and by the time I was in the house the doorbell would ring twice. I would never answer, and they would leave a slip on my front door requesting me to call a phone # and threatening that what I was doing was against the law. I never answered the door, never called the phone #, never removed the notices (I had a bunch of them on my front door), and if they caught me outside I ignored their very existence. Eventually they went away. I am sure as a result I’m on some Gubermint List. But I don’t care.
Census person/people blew through, literally everybody was not home, and the Census Bureau took the "town" off their maps.
Apparently, they didn't bother with follow-ups.
Hmmm, maybe that's why they are so harassingly insistent nowadays.