28.6% of the households in Contra Costa County (East)--Brentwood & Oakley Cities PUMA, CA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
93.5% of the residents in Contra Costa County (East)--Brentwood & Oakley Cities PUMA, CA are U.S. citizens.
Contra Costa County (East)--Brentwood & Oakley Cities PUMA, CA borders Alameda County (East)--Livermore & Dublin (East) Cities PUMA, CA, Contra Costa County (South)--San Ramon City & Danville Town PUMA, CA, Contra Costa County (Northeast)--Antioch City PUMA, CA, Sacramento County--Galt, Isleton Cities, Delta Region & Rural PUMA, CA, and San Joaquin County (East)--Lodi, Ripon & Escalon Cities PUMA, CA.