The census officers have until Sunday to deliver them all. The person delivering to you probably lives in the same sticks that you do, and is just getting around to everyone's place.
Yeah we have 10 days to deliver - I had 380 homes in my area - it took me a total of 13.5 hours to deliver mine - which I did do over a weekend as I work during the week. Not everyone would have that ability though as that is a lot of walking in a weekend and not everyone who does it is younger.