For the 50 percent of families in the middle of the scale, household income ranges from $51,000 to $123,000 for a typical four-person, two-parent family. The median is about $81,000. Those numbers are from 2008, and have probably fallen 5 to 7 percent since then, on account of the recession. Median income for a single-parent, two-child family is about $25,000.
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