[CornPop]

I don’t remember getting a census form last year.

[Does so]

Those with 2nd homes aren’t likely to respond.

[9YearLurker]

This isn’t the full census, just a small subset. And the canvassers can be persistent if you are selected to participate. Not only repeated direct visits, but also repeated calls. Call me cynical but I find it suspicious that only what would be embarrassing bad new responses seem to be left out here.