Over time, the religious backbone of the United States has slowly deteriorated, but to what degree? Let's dive into it:
Generational ideology in flux
In just ten years, Millennials have become at least fifteen percent less affiliated with Christianity and over ten percent more Millennials now consider themselves religiously "unaffiliated."
Young adults are leading the charge
As the chart below shows, young adults have always been less affiliated with religion than other age groups but the percentage of 18-29 year olds with no religious affiliation is now higher than ever.
A new definition of "Truly American"
Despite no official religion in the United States, about 3/4 of Republicans agree that a belief in God is important to being "truly American" compared to 42 percent of their Democratic colleagues.
Where Congress stands
The 116th Congress is much more religious than the actual religious makeup of the United States. While there are millions of atheists and Americans unaffiliated to any specific religion, there is only one person in the entire 299-person Congress that is religiously unaffiliated: Sen. Kyrsten Sinema.
Democrats in particular
Of the two major American political parties, Democrats are much less religious than than they once were. Over a fifth of Democrats in the United States do not identify with a specific religion. This is over 20 percent higher than the party's religious affiliations in 1975.
That's all for today's edition of The Chart Gallery.
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