The outer LOCATION@1 consists of the eastern portions of LOCATION@2 and ORGANIZATION@1 counties and is divided into NUMBER@1 distinct areas : Lamorinda , Central Contra Costa County , LOCATION@3 , the LOCATION@4 , and the LOCATION@5 .

LOCATION@1 The eastern side of the bay , consisting of LOCATION@2 and ORGANIZATION@1 counties , is known locally as the LOCATION@1 .
