A census worker has very little clearance to have access to this type of information.
I read SB’s initial comment and some subsequent replies.
A census worker who is not a pt contracted worker means she works in .gov full time and has other duties besides the walkround census stuff. SB can correct me if I am wrong. There is a lot of talk amongs employees in any outfit. So she herself may not officially have access to some info but hear or read from others.
I would not discount her knowledge just because of her specific position.