Married couples like mine bring that number down some. We are a one income family. In 2009 I was below the average income in that category, not by much but we did bring down the average. Now we now are above that average a bit, but still a one income household. Would be interesting to see of the married filling jointly, how many are one income families.
Our household income is down about 50% from when we both worked around 7 yrs ago, but we’d not have it any other way.