I lived out the in the boonies growing up, so usually went to a friend or cousin's neighborhood to get our loot.
Where we are now, aren't many kids but we've had as many as 15 show up. I would take the kiddo around usually with another neighbor and her kids. A few blocks would yield a big bag full of candy and some worn out treaters.
There is a place at the beach that we went one year. The entire neighborhood goes all out. Folks park at a putt-putt and then walk the neighborhood. We filled up a pillowcase and walked until she was just done in, and I don't think we hit half of the neighborhood.
She's getting too old for mom to go now and almost too old to go at all.