What hamlets and communities are in the Greater Oyster Bay Area in Long Island ny?

According to Wikipedia:
What towns are part of Oyster Bay?
The Town of Oyster Bay contains 18 villages and 18 hamlets: Villages: Bayville, Brookville, Centre Island, Cove Neck, Farmingdale, Lattingtown, Laurel Hollow, Massapequa Park, Matinecock, Mill Neck, Muttontown, Old Brookville, Oyster Bay Cove, Sea Cliff, Upper Brookville.

This is likely to be right as I used to live near there and all those towns are close by.
https://en.wikipedia.org/wiki/Oyster_Bay,_New_York

Wikipedia further says that it's 18 towns and 18 hamlets.

Google is your friend

I don't know if you're still checking this, but I'm from NY. Communities that come immediately to mind are:

Bayville
Glen Cove
Old Bethpage