[maxk42]

Well the household income is not the incorrect number to look at. You just have to divide that by the number of people in the household. Children, elderly, disabled and others don't typically work. That makes the income-per-individual lower than the "individual income" which only counts those that are participating in the workforce.

Quickly looking at Wikipedia ( http://en.wikipedia.org/wiki/Household_income_in_the_United_... ) I see that the median household income is $50,233 and there are 116,011,000 households in the US. A quick googling shows there are about 316.1 million people in the US, yielding an average of 2.725 people per household. Dividing $50,233 drops our previous income figure down to $18,434.12 per person.