An overview of the general cost of living index for Tiverton, RI is displayed above for your reference. Residents in Tiverton, RI enjoy a cost of living index of 120. This index is 1% higher than the Rhode Island average, and 20% 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 Tiverton, RI, the average cost of goods and services is equal to it is in Rhode Island, and it is 18% higher than the national average.