A new Gallup poll suggests that growth of Americans claiming no religious affiliation is slowing. Remember that this category includes anybody who does not claim a religious affiliation, many of whom are religious but just not affiliated.
Predicting the future growth of this category is tricky. Many of the people are younger and religious but just not affiliated. You might expect religious entrepreneurs to engage these people, thus potentially slowing or even reversing the growth. However, the very notion of affiliation may be shifting. Individuals may be happy practicing religion or going to church while not creating formal affiliations. These growth in the religious nones is one of the biggest changes in American religion, but there is still much to be learned.