A general overview of the cost of living index for Wellesley, MA is displayed above. In Wellesley, MA, the overall cost of living index is 214, which is 64% higher than the Massachusetts average and 114% 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 Wellesley, MA, the city's goods and services are 15% higher than the Massachusetts average and 27% higher than the U.S. average.