Nate Berg, writing at the Atlantic Cities:
In terms of charity, the rich in America give a lot. But they’re not giving the most. According to a new study out from The Chronicle of Philanthropy, which analyzes charitable giving at the ZIP code level, the richest neighborhoods are donating much smaller shares of their discretionary income than lower-income neighborhoods. Only nine of the 1,000 biggest-giving ZIP codes are among the richest 1,000 ZIP codes.