A general overview of the cost of living index for Millbrae, CA is displayed above. In Millbrae, CA, the overall cost of living index is 225, which is 63% higher than the California average and 125% higher than the U.S. average. The following categories are used to calculate the overall cost of living index: goods/services (33%), housing (30%), groceries (13%), utilities (10%), transportation (9%) and health care (5%). From the list, it is clear that the categories of goods/services and housing are responsible for the largest portions of the overall cost of living index. As a general rule, everyday goods and services provide an accurate measure of the general cost of goods in any given city. In the case of Millbrae, CA, the city's goods and services are 17% higher than the California average and 29% higher than the U.S. average.