Also, read Northern Insights' Striking it richer.
From the American Working Poor Families Project:
There were more than 10 million low-income working families in the United States, an increase of nearly a quarter million from the previous year.
Forty-five million people, including 22 million children, lived in low-income working families, an increase of 1.7 million people from 2008.
Forty-three percent of working families with at least one minority parent were low income, nearly twice the proportion of white working families (22 percent).
Income inequality continued to grow with the richest 20 percent of working families taking home 47 percent of all income and earning 10 times that of low-income working families.
Working Poor Families Project 2011 Recommend this post