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Trends in Religiosity in America

Gallup started collecting data in 1948 relating to religious trends in the United States. In that year the percentage of Americans stating they are Protestants was 69%, Catholics made up 22%, and no religion was at 2%.

The high point in these studies for Protestants was in 1954 and 1956 when the percentage of Protestants reached 71%. The high point for Catholicism was in the 80's when it reached 28% and 29%. The Jewish populace has hovered pretty consistently between 2% and 4%. Mormonism wasn't really measured until the 80's and remains about 2%.

Skip ahead to 2016's figures. Protestants are down to 37%. Catholics remain at 22%. Jewish is at 3%, Mormonism is at 2%, and non-specific Christian at 10%. No religion is at 18%. So, while the number for Catholics, Jews, and Mormons has remained fairly stabled over the 60+ years, the two major trends is the decline of Protestantism down from 71% to 37%, and the rise of no religion from 2% to 18% It appears given this data that two-thirds of those siphoned off from Protestants go to no religion, and a third go to a non-specific Christian belief.

If you look more generally at the numbers, when you ask: 'How important is religion to your life?', (a question first posted in 1992), the trend shows that 'Not very Important' has risen from 12% to 25%. Since this is 25% of the total, it suggests that the trend from Protestantism to non-specific Christian to Atheism is likely to continue. It seems likely that those that have taken a step away from declaring they are Protestant are most likely to eventually move to some form of Agnosticism/Atheism.

If you ask: "Do you happen to be a member of a church/synagogue", the trends show a pattern.  In 1992 70% answered 'Yes', and 29% 'No'. By 2016 these numbers had changed to 55% for 'Yes' and 44% for 'No'.

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