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9th Dumbest: Oklahoma
% of Population With Bachelor's Degrees or Higher: 23.8%
Median Household Income (2013): $45,690 (41st)
Average SAT Score (2013): 1689
Average IQ and Ranking: 99.3 (35th)
Oklahoma's economy is driven by the energy industry, with aviation and food processing also offering employment opportunities in the state. Of the 1.7 million person strong labor force, 23% work in the public sector -- the leading employment opportunity in the state -- while the transportation and utilities sector accounted for another 16.4% of the jobs in the state. The American Airlines (AAL) global maintenance and engineering headquarters in Tulsa is the largest airline maintenance base in the world. Oklahoma's 15.6% poverty rate ranks 44th in the country.