An overview of the general cost of living index for Lahaina, HI is displayed above for your reference. Residents in Lahaina, HI enjoy a cost of living index of 178. This index is equal to the Hawaii average, and 78% 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 Lahaina, HI, the average cost of goods and services is 3% lower than it is in Hawaii, and it is 22% higher than the national average.