This infographic by GOOD shows the income distribution according to different religious belief groups. It is interesting to notice that 43% of people with Hindu beliefs earn an average income of 100K or more. For people with Jewish beliefs the percentage is 46%, compared to 21% for people with Christian beliefs (mainline), and 8% for people with Christian beliefs (Black churches). Click on the image for more detail.
Membership in the Catholic church in the US has increased in recent years primarily due to immigration from Latin America. States with large Irish- and Italian-American populations also have significant numbers of Catholics. The map above shows membership per 1000 people for all counties in the US. New Mexico, California and Texas have the highest rates of adherents.
Note: The data were downloaded from the Association of Religion Data Archives, www.TheARDA.com