Cost Of Living In Contra Costa County. On average, the cost of rent in contra costa county is about $2,278 per month. Housing costs in san miguel (contra costa county), california.
The median income for el sobrante cdp (contra costa county) homeowners, is $76,214. The living wage shown is the hourly rate that an individual in a household must earn to support his or herself and their family. Households in contra costa county have a median income of $9,274 per month so the average renter in contra costa county is spending roughly 25% of their earnings on.