This astounding figure was just reported by The Institute for Women's Policy Research using 2011 government census data.
Other organizations have similarly reported on the gender wage gap -- the difference in pay between men and women. The National Women's Law Center has just published a fact sheet entitled "Closing The Wage Gap Crucial For Women Of Color And Their Familes."
Additionally, click here to link to the map compiled and published by the "National Partnership for Women & Families," which shows the gender wage gap in all 50 states and in the top 50 metropolitan areas. Seattle had the widest pay gap, followed by Pittsburgh, Buffalo, and Detroit. Los Angeles had the narrowest gender wage gap, followed by Las Vegas, Miami, and San Antonio.
Check out the map to see how your city and state are doing!