Christianity is plummeting in America, while the number of non-believers is skyrocketing.

4. But these non-believers are not particularly atheist. That number hasn’t budged and stands at less than 1 percent. (Agnostics are similarly less than 1 percent.) Instead, these individuals have a belief in God but no interest in organized religion, or they believe in a personal God but not in a formal faith tradition.

If you have a belief in God, you are not a non-believer. If you believe in a personal God but not in a formal faith tradition, you are not a non-believer. You are throwing a lot of different fruits in the same basket. What you are seeing is a moving away from traditional church denominations in addition to a substantial growth in non-denominational evangelical Christian churches. This is certainly not shocking to anyone who has been paying attention to the re-alignment of Christians during the last 20 years or so. And, I would certainly classify most non-denominational Christians as Protestants, so your percentages may not be as shocking as you imply. To answer your question, “Where have all the Christians gone?” I would simply say, take a look at the non-denominational churches in your town or city. In fact, stop in and say hi. You might be surprised!