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10. Oklahoma

Median household income: $44,312
Population: 3,814,820

More than 630,000 Oklahomans (17.2 percent of the state) last year had incomes below the poverty level, according to the Census Bureau.

African-Americans, Native Americans and Hispanics were twice as likely as whites in Oklahoma to earn less than the poverty level. Only 14.6 percent of Oklahoma whites live in poverty, while 28.8 percent of Hispanics and 29.8 percent of blacks do. Meanwhile, an estimated 45 percent of Oklahoma single mothers with children younger than 18 live in poverty.

On the positive side, employment has increased each year since 2009 and could do the same in 2013. In 2009, the unemployment rate was 7.1 percent, in 2012 it was just 5.3 percent. That number, though, has been flat for a while. Since August of last year, jobless rates have remained unchanged.

Anne Rippy | Photographer's Choice | Getty Images