Montclair has 4 “downtowns,” by train stations. 3 of them are small but still have some good stuff. From south to north, it’s Bloomfield Ave (big), walnut, watchung, bellvue. In general, the lots and houses get bigger as you move north, east and west.

I find walking around it’s pretty integrated, mainly by wealthier professionals of multiple racial/ethnic backgrounds. The south 1/4ish of the town is historically black. It’s not Queens level by any stretch of the imagination.