Two trends that are already well underway – the decline of Christians and the growth of religiously unaffiliated people as a share of the U.S. population – are expected to continue in the decades ahead, according to the Pew Research Center’s projections of major religious groups around the world.
But, if current demographic trends hold, there also will be other significant changes in the U.S. religious landscape: Judaism will no longer be the largest non-Christian religion in the country and, by 2050, Muslims are projected to be more numerous in the U.S. than people who identify as Jewish on the basis of religion.
Due in part to their continued migration into the country, Muslims are forecast to make up 2.1% of the U.S. population in 2050, up from 0.9% in 2010. Two other major factors are driving Muslim growth: They currently have the highest fertility rate and the youngest median age of any major religious group in the U.S.
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