There are 260 Banks & Credit Unions in San Mateo County, California, serving a population of 763,450 people in an area of 449 square miles. There is 1 Bank & Credit Union per 2,936 people, and 1 Bank & Credit Union per 1 square miles.
In California, San Mateo County is ranked 26th of 58 counties in Banks & Credit Unions per capita, and 5th of 58 counties in Banks & Credit Unions per square mile.