An overview of the general cost of living index for New Carrollton, MD is displayed above for your reference. Residents in New Carrollton, MD enjoy a cost of living index of 121. This index is 1% higher than the Maryland average, and 21% 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 New Carrollton, MD, the average cost of goods and services is 17% higher than it is in Maryland, and it is 21% higher than the national average.