U.S. Census Bureau. U.S. Neighborhood Income Inequality in the 2005–2009 Period
American Community Survey Reports. October 2011.
Reports city of Atlanta had the highest income inequality of any large area in the country.
"Atlanta had greatest income inequality in U.S., Census show; metro far better," AJC.com, Dec. 8, 2011
Where High Income and Low Income Workers Live. Atlanta Regional Commission. October 2009
Low-income workers, for example, tend to live south of I-20, while high-income workers live north of I-20 along the GA 400 corridor.
Additional data and maps under Statistics/Mapping tab