Here's how much it costs to live in America's 10 most expensive cities

• San Francisco, San Jose, and Boston are three expensive cities for families.
• EPI analyzed the monthly costs of a household with two adults and two kids based on food, childcare, and other costs.
• Housing for this household type in San Francisco — the most expensive metro — is $3,188 a month.

Six of the 10 most expensive US metros for families are in California.

Business Insider looked at the monthly costs for households with two adults and two children from the Economic Policy Institute's "Family Budget Calculator." EPI assembled data from multiple sources and looked at several kinds of expenses a household may have.