Westville usually has tons of kids trick-ortreating, and lots of decorated houses. Try to avoid driving around there, a lot of people walking around and it’s not super well-lit. Maybe park on the edge or in one of the parking lots in the center of westville and walk in. Alden is usually a good place to start.

Usually lots of trick-or-treaters in East Rock too. More compact and dense than Westville.

Wooster Square has historically had lots of decorations. I think there was a dog costume parade held there last week. I don’t know if there are a lot of trick-or-treaters.