This is the question Brad Wright asks and probes in the 4th chap of his excellent new book, Christians Are Hate-Filled Hypocrites…and Other Lies You’ve Been Told: A Sociologist Shatters Myths From the Secular and Christian Media
Here are some basic numbers, and the numbers are what percent are born into that group:
Which is a way of indicating how evangelistic groups are. But this isn’t the whole story, and Brad Wright’s study has some interesting facts about Evangelicals.
50% of Evangelicals were raised Evangelical. 30% were raised in Mainline or historically Black traditions; 10% were raised RCC. 6% were raised outside of Christianity completely and 2% were raised in another religion.
Conversions count for a relatively small percentage of evangelicals.
So what about retention rates?
Unaffiliated retain only about 45% of its own.
Brad’s study shows about 74% of Evangelical youth remain Evangelical. 7% join another denomination, mostly Mainline. 3% join another religion. 16% disaffiliated altogether.