The cost of living varies widely by state. An analysis by the Tax Foundation named the District of Columbia as the most expensive place to live in the United States in 2014, while Mississippi ranked as the cheapest place to live.
The Tax Foundation based its analysis on the relative value of $100. In Mississippi, $100 was worth $115.74, and the same amount in the District of Columbia would stretch only to $84.60. Other expensive places to live included Hawaii, where $100 was worth $85.32, and New York, where it was worth $86.66. Other less expensive places to live include Arkansas and Missouri.