OfTheCross
Veteran
Although these factors explain the rapid growth of aggregate student debt, there remains a large number of borrowers with smaller balances. The distribution of borrowers by balance reflects this; the median balance among borrowers is just under $18,000. About 33 percent of borrowers have balances below $10,000, and 20 percent of borrowers has a balance of more than $50,000. Only a small percentage—only 7 percent or about 2.9 million borrowers—has a balance over $100,000.
NYFed
They have a lot of wonderful graphs that break down the findings.
Not surprisingly, the default rate is less among those with higher incomes:
But what I would hope to see is "Current, Balances increasing" going down. Although the higher earners aren't defaulting. The balances aren't being paid down. The interest rates must be killer.