I guess "average" has to be taken in the context of your age and since the question was about Households let's remember that in todays day and age spousal income can add 50% to 100% of the primary wage earner.
Let's look at a little CNN article on the subject of college graduates (my circle of "average friends" include mostly college graduates, and most studies show if you don't graduate you most likely will have a below average salary - not always, so just go with me on this)http://money.cnn.com/2012/09/27/pf/college/college-salary/index.html
Let's look at the mid-career salaries (you don't expect to compare someone who is retired to a 1st year graduate, do you?) for both the top ten and the bottom ten and then compute the midpoint.
$122,500 for the top ten and $44,490 for the bottom ten schools with the lowest salaries.
Mid-point of the above is $83,495.
Put this average person together with another average person making 50% of this and you get a salary of $125,243.
To be fair to everyone and not start a discussion of what is "average" -- the age of the respondent and his/her definiton of average was left to the judgement of the "poster," but since the voting was closed you don't have to worry that I skewed the results!
I love simulated data. It turns the impossible into the possible! Remember - Past performance is great for buying a dishwasher, but not so great for picking stocks or actively managed mutual funds!