There are 380 Banks & Credit Unions in Contra Costa County, California, serving a population of 1,123,678 people in an area of 723 square miles. There is 1 Bank & Credit Union per 2,957 people, and 1 Bank & Credit Union per 1 square miles.
In California, Contra Costa County is ranked 27th of 58 counties in Banks & Credit Unions per capita, and 7th of 58 counties in Banks & Credit Unions per square mile.