An overview of the general cost of living index for Glen Ellyn, IL is displayed above for your reference. Residents in Glen Ellyn, IL enjoy a cost of living index of 132. This index is 34% higher than the Illinois average, and 32% 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 Glen Ellyn, IL, the average cost of goods and services is 12% higher than it is in Illinois, and it is 8% higher than the national average.