38.2% of the households in Contra Costa County (South)--San Ramon City & Danville Town 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.
89.6% of the residents in Contra Costa County (South)--San Ramon City & Danville Town PUMA, CA are U.S. citizens.
Contra Costa County (South)--San Ramon City & Danville Town PUMA, CA borders Alameda County (Northwest)--Castro Valley & Ashland PUMA, CA, Alameda County (Central)--Pleasanton & Dublin (West) Cities PUMA, CA, Alameda County (East)--Livermore & Dublin (East) Cities PUMA, CA, Contra Costa County (Northeast)--Antioch City PUMA, CA, Contra Costa County (East)--Brentwood & Oakley Cities PUMA, CA, Contra Costa County (West)--Walnut Creek (West), Lafayette & Orinda Cities PUMA, CA, and Contra Costa County (Central)--Concord (South), Walnut Creek (East) & Clayton Cities PUMA, CA.