What states are the top four states with the lowest cost of living?
The top four states with the lowest cost of living are Mississippi, Kansas, Alabama and Oklahoma. 

Mississippi has the cheapest cost of living out of all the states at a cost of living index of 83.3. The second cheapest cost of living out of all the states is Kansas with a cost of living index at 86.5. The third cheapest cost of living out of all the states is Alabama with a cost of living index at 87.9. The fourth cheapest cost of living out of all the states is in Oklahoma with a cost of living index of 87.9. 

The cost of living is measured by the amount of money needed to cover basic living expenses in a certain location.