An overview of the general cost of living index for Lancaster, NY is displayed above for your reference. Residents in Lancaster, NY enjoy a cost of living index of 85. This index is 30% lower than the New York average, and 15% 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 Lancaster, NY, the average cost of goods and services is 24% lower than it is in New York, and it is 15% lower than the national average.