The typical middle class income in the U.S. is just over $56,000 a year. Economist Joseph Brusuelas of RSM, an accounting and audit firm, has taken a close look at jobs added in the Obama economy. He defines "high wage" as a job that has a median salary of $58,000 or more a year (so just above the median income).
Yes, there are a lot of assumptions that go into a calculation like this. For example, earning $58,000 in Cleveland takes you a lot further than earning the same amount in New York or San Francisco. But it's a reasonable assessment of how good the jobs are are under the Obama economy.
Brusuelas found that 47% of the jobs created since January 2010 (he argues that's when you start to see the effects of Obama's policies) have been in the high-wage category.