When I was a kid we lived in a suburb area with lots of young families so there was tons of door to door Trick or Treating.
Now, around here on the farms, no door to door stuff.... but the community centers, schools, and churches are very accomodating with a variety of age appropriate activities.
Little kiddie parties, all the way up to high schools with super scary, gory, haunted house stuff. If you want the crappola scared out of yourself, come on down. A few years back I almost ended up in the ER during a haunted house adventure. Don't do this stuff pre-op. Ha Ha