You'd be surprised. I live 35 miles west of Boston/Cambridge, and there are none of these delivery services. Last time I looked, Uber was available but it looked very thin--not something I could depend on for a morning appointment. All of these offerings decrease greatly in availability once you get beyond the central Metro areas of certain cities.

Of course, I wouldn't use them much anyway. Assuming the thing being delivered is available locally (which is more the issue), hopping in a car and picking it up isn't a big deal.

[ADDED: Well, I can use Peapod (and have when I had an injury) but didn't particularly care for it.]

Outside Philly, Upper Makefield. I think we have FreshDirect which some how manages to encourage people just to go the shops themselves due to how terrible their service is.