6. Oklahoma
Average Student Loan Balance: $23,430
Ratio of Student Payments to disposable income: 14.21%
With a lower average annual wage and higher average student loan balance than Arizona, it might be hard to fathom how Oklahoma could seemingly leapfrog its way into the sixth place on this list of easiest US states to pay off student loan debt. With a lower state income tax floor, however, Oklahoma serves as a more attractive landing spot for cost-conscious graduates, if only by a hundredth of a percentage point. These differences add up, though, making Oklahoma one of the easiest US states to pay off student loan debt.