Fact Tank sat down with David Campbell, a professor of political science at the University of Notre Dame, to explore what the new findings mean.
Two-thirds (66%) of U.S. Mormon adults are currently married, down slightly from 71% in 2007 – but still high compared with current rates among Christians overall (52%) and U.S. adults overall (48%).
In recent years, the share of Americans who identify with mainline Protestantism has been shrinking significantly, a trend driven partly by generational change.
One big reason evangelical Protestants have not declined at the same rate as other major Christian groups is that they are gaining new converts at a greater rate than they are losing people who were raised in the tradition.
The growth of the religiously unaffiliated in the U.S. is occurring across genders, generations and racial and ethnic groups.
The 35% of Millennials who do not identify with a religion is double the share of unaffiliated Baby Boomers (17%) and more than three times the share of members of the Silent generation (11%).
Christians are declining, both as a share of the U.S. population and in total number, while religious "nones" continue to rise.
The Christian share of the U.S. population is declining, while the share of Americans who do not identify with any organized religion is growing. These changes affect all regions in the country and many demographic groups.
Explore the geographic distribution and demographics of America's major religious groups.
If current demographic trends hold, by 2050, Muslims are projected to be more numerous in the U.S. than people who identify as Jewish on the basis of religion.