There are a LOT of things named East Bay in The East Bay.
Oakland is in the East Bay.
The "Bay" referred to is the San Francisco Bay, as opposed to the San Pablo Bay or the Monterey Bay or any other Bay.
The East Bay definitely refers to:
- At the very least, Alameda County in its entirety is The East Bay.
The East Bay may also refer to:
- anything from Richmond in the north to Union City in the South
- Anything east of the Bay
People who live there think the East Bay refers to:
- Brentwood
