The U.S. Census Bureau released this report, "Income, Poverty, and Health Insurance Coverage in the United States: 2011", in September 2012.
A summary of findings states,
"The U.S. Census Bureau announced today that in 2011, median household income declined, the poverty rate was not statistically different from the previous year and the percentage of people without health insurance coverage decreased.
Real median household income in the United States in 2011 was $50,054, a 1.5 percent decline from the 2010 median and the second consecutive annual drop.
The nation's official poverty rate in 2011 was 15.0 percent, with 46.2 million people in poverty. After three consecutive years of increases, neither the poverty rate nor the number of people in poverty were statistically different from the 2010 estimates.
The number of people without health insurance coverage declined from 50.0 million in 2010 to 48.6 million in 2011, as did the percentage without coverage - from 16.3 percent in 2010 to 15.7 percent in 2011."