A new survey of religious affiliations in the US shows which states have seen the largest growth in Christianity, and which have seen the largest reduction.

The proportion of non-religious people in America is growing in every U.S. state except South Dakota, new research suggests.

Find survey data on religion and spirituality in 34 metro areas, all 50 states, major regions (like the South or the Midwest), or the whole United States. You can search for information on religious ...