Americans could require savings of anywhere from $666,000 to $2 million to retire, according to a recently released analysis. The key factor underlying this wide range? The state in which one chooses to retire, with the $666,000 figure representing the amount potentially needed to retire in Mississippi (the cheapest state to retire in) based on the estimated average annual expenditure of a typical retired person outside of Social Security checks, and the $2 million figure representing the same amount for Hawaii (the most expensive state to retire in). What about the state you plan to retire in? CLICK HERE.