An overview of the general cost of living index for Marion, OH is displayed above for your reference. Residents in Marion, OH enjoy a cost of living index of 87. This index is 4% lower than the Ohio average, and 13% lower 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 Marion, OH, the average cost of goods and services is 13% higher than it is in Ohio, and it is 12% higher than the national average.