I came across this today and found it to be quite interesting.
The question people were asked in this survey was this:
“How important is religion to your everyday life?” and how often one attends religious service.
From the article:
Residents of Southern states are generally the most religious, underscoring the validity of the “Bible Belt” sobriquet often used to describe this region. Coupled with the Southern states in the high-religiosity category is Utah, the majority of whose residents are Mormon — the most religious group in America today. On the other hand, residents of New England and a number of far Western states tend to be the least religious.
You can check out the whole article here.
HT: Russell Moore