An overview of the general cost of living index for Boston, MA is displayed above for your reference. Residents in Boston, MA enjoy a cost of living index of 144. This index is 11% higher than the Massachusetts average, and 44% higher than the national average. The following categories are used when determining the cost of living index for any given city: health care (5%), transportation (9%), utilities (10%), groceries (13%), housing (30%), and goods/services (33%). Clearly, housing and goods/services make up the majority of the formula for calculating the cost of living index. Because of this, the general cost of living for any given area can be estimated by looking at the cost of everyday goods in that area. For those living in Boston, MA, the average cost of goods and services is 15% higher than it is in Massachusetts, and it is 27% higher than the national average.