There is not a single Sun Belt state where median household income is greater than the U.S. as a whole: http://en.wikipedia.org/wiki/List_of...ates_by_income

California and Hawaii are the only warm weather states in that group. The highest income Sun Belt state is Texas, but half of the states in the country have higher median incomes than it. High income places tend to be high tax states first, and cold weather states second.