One nation under God, so to speak

Vox - The Public Religion Research Institute regularly polls Americans on their religious beliefs and practices, and they put together some striking data on the most common religious affiliations in each state. Perhaps the biggest surprise is that "unaffiliated" is the biggest group in 13 states, and is tied for the biggest group nationally with Catholics at 22 percent of the population. Some of these are liberal states you might expect to make the list, like Vermont or Oregon, but Montana, Alaska, and Idaho also have unaffiliated pluralities. In only five states — Alabama, Louisiana, Nebraska, North Dakota, and South Dakota — is it not in the top three religious traditions.

 STATE BY STATE CHART