We have a skeleton we put up, and my wife will carve a pumpkin. However, we take our holidays one at a time. So nothing goes up until after Columbus Day Federal Holiday.
Our neighbors on one side put their Halloween decorations BEFORE Labor Day. Several large inflatables (Frankenstein, Halloween Mickey Mouse, etc) and the mailbox is covered in "spider webs". But they have a 4 year old and I know the day after Halloween their Christmas decorations will go up. Neighbors on the other side did put pumpkins out last week, but they also have a younger child, a 5 year old.