I live about 1/2 mile,if that, from the PO and get USPS Amazon home delivery.
I’m surprised to learn that there is such inconsistency.
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Guess what! My local Post office is open only FOUR hours per day! Mail delivered today by truck will be sorted tomorrow. Most working people pick up their mail on Saturday.
A lot of inconsistency. In my area there are no rural routes and some people are 40 miles from the Post Office and still have to go to the Post Office to get mail. To top it off our little Post Office was on the list of closures a couple years ago and those people would have had to go an additional 30 miles to get their mail. We fought closure, and were amazed we won, at least that round.
I still wonder why there are so many Post Offices (branches) so close together in cities. That doesn’t seem to be cost effective. Our mail that is Westbound is sent 100 miles East first to be sorted then sent the other way; that doesn’t seem cost effective either.