Poll: U.S. state with the highest well-being is...

Generally speaking, well-being has been fairly stable over time; most states exhibited little change from 2008 to 2009. Only four states — South Dakota, Mississippi, Hawaii, and Iowa — saw an increase of two or more points in their Well-Being Index score from 2008 to 2009. Wyoming saw the largest decrease at 1.3 points. Overall, 18 states moved in a negative direction, 27 in a positive direction, and 5 remained unchanged.