Want to move to the West Contra Costa area? Look at apartments in Greenbriar, a residential neighborhood near West Contra Costa, CA? Residents of Greenbriar may prefer to have a car, because 88% of locals use their vehicles to get around. Commuting to work takes about 35 minutes on average. Only 27% of households have children, so it's a good fit if you're looking for a calm neighborhood. Residents are well-educated, with many having postgraduate degrees.