Mt. Timpanogos LDS Temple,in the Provo–Orem, Utah Metropolitan Statistical Area. Photo Ken Lund via Flickr (http://flic.kr/p/7aMyNs)
According to Gallup, Utah’s Provo-Orem was the most devout of 189 cities surveyed in 2012. 77% of residents testified as “very religious”. In contrast, Burlington and Boulder rate as the most faithless, at 17%. The survey shows that the most religious cities are in the South; the least are in the Northeast and on the Pacific Coast. So now you know 
- More at the Religious News Service
- Gallup survey is here
