A report conducted by the Chronicle of Philanthropy studied the giving habits of US citizens from every state, city, and zip code.    Here are some of the most compelling finds.  (To account for sharp differences in the cost of living across America, The Chronicle’s study compared generosity rates after residents paid taxes, housing, food, and other necessities.).   
The rich are not the most generous.
Middle-class Amer­i­cans give a far bigger share of their discretionary income to charities than the rich.   Households that earn $50,000 to $75,000 give an average of 7.6 percent of their discretionary income to charity, compared with an average of 4.2 percent for people who make $100,000 or more. In the Washington metropolitan area, for example,  low and middle-income communities like Suitland, Md., and Capitol Heights, Md., donate a much bigger share of discretionary income than do wealthier communities like Bethesda, Md., and McLean, Va.
The 1 percent really are different.
People who live in neighborhoods with many other wealthy people give a smaller share of their incomes to charity than rich people who live in more economically diverse communities.  When people making more than $200,000 a year account for more than 40 percent of the taxpayers in a zip code, the wealthy residents give an average of 2.8 percent of discretionary income to charity, compared with an average of 4.2 percent for those earning $200,000 or more in diverse neighborhoods.
Tax incentives matter
State policies dictating tax deductions associated with philanthropy can have a real impact on the giving trends of its residents. Over the past year, as a result of state legislation in Arizona, the state saw an increase of 100 million dollars in philanthropy. Making the tax benefits known will help your nonprofit and allow those giving to gain a reward, in addition to fulfilling their personal motives.
Republicans give more than Democrats
Based off the 2008 elections numbers, Republican states give at a higher rate than Democratic states. The eight states with the reported highest rate of philanthropy voted McCain in the ’08 election while the seven lowest giving rates voted Obama. With the upcoming Romney and Obama election this distribution may change.The “Bible Belt” out-gives the Northeast
States like Utah, Idaho, and Mississippi give more than 7% of their income annually. This is contributed to their highly religious population, specifically Mormons who are expected to give at least 10% to the church yearly. In addition, those who attend church services every Sunday are asked to donate, so this weekly donation, though moderate adds up at the end of each year.   New England states, however, give less than 3% of their income a year, and the same goes for 50 of biggest metropolitan cities in the country.States are ranked drastically different when religious giving is excluded.
The rankings of states for charitable giving, when excluding those given to religious institutions, would be much different. For instance, New York would change from No. 18 to No. 2 and Pennsylvania from No. 40 to No. 4.   This shows that people from the lower ranking states are not necessarily less generous, but they do not have the same social motives to give.Checkout where your State falls: http://philanthropy.com/section/How-America-Gives/621/