The days where America can be classified as a "Christian nation" are rapidly coming to an end. On Tuesday, the Pew Research Center released a new survey indicating that Americans have steadily become less religious, particularly Christian, in recent years, dropping by a total eight percentage points, from 78.4 percent to 70.6 percent between 2007 and 2014.

Good news for atheists and agnostics though, because those demographics have enjoyed a growth of more than six percentage points, from 16.1 percent in 2007 to 22.8 percent in 2014. According to the study, there are now approximately 56 million religiously unaffiliated adults living in the United States, more than either Catholics and mainline Protestant denominations. 

Surveying over 35,000 adults by phone, the study showed that millennials make up the highest percentage of irreligious, trailed by Gen X'ers who have been leaving their faiths as well; 25 percent to be exact, a four point jump from 2007.

"As the Millennial generation enters adulthood, its members display much lower levels of religious affiliation, including less connection with Christian churches, than older generations," Pew reports.

The report also indicated that they will not be coming back. 

"It’s not that they start unaffiliated and become religious," Alan Cooperman, the director of religion research at the Pew Research Center, told The New York Times. "In fact, it’s the opposite." Graph below provided by The Huffington Post:

The religions with the largest retention rates were Hinduism, Judaism, and Islam, with 80 percent of Hindus, 77 percent of Muslims and 75 percent of Jews still identifying with their childhood faiths.