Cost-of-living rates by state for 2014 are available at MissouriEconomy.org, states the Missouri Economic Research and Information Center. Overall, Southern and Midwestern states had the lowest cost-of-living rates, and Alaska, Hawaii, New England and the West Coast were the most expensive states in which to live.
In 2014, Mississippi was the least expensive state in which to live, with an index of 86.9, and Hawaii was the most expensive, with an index of 164. Missouri was the 17th least expensive state in which to live, with an index of 93.3, according to the Missouri Economic Research and Information Center. The center averaged the indices of cities and metropolitan areas in each state to obtain the cost-of-living index for that state. The calculations included costs such as housing, utilities, groceries, transportation and health.