The following comes from a July 29 Crux article by Michael O’Loughlin:
Your notion of whether or not the United States is a “Christian nation” could be colored by where you live
In Dallas, for example, nearly 8 in 10 residents are Christian, but in San Francisco, fewer than half identify as Christian – and the number of those claiming no religious affiliation is strikingly high in some cities.
The Pew Research Center’s 2014 Religious Landscape Study, released Wednesday, looked at the religiosity of Americans as a whole, and it also dug a bit deeper to find trends in the 17 largest metropolitan areas.
“While Christians make up between 65% and 75% of adults in most of those metro areas – and people with no religious affiliation generally make up roughly 20-25% of the population – some cities stand out for a variety of reasons,” Michael Lipka, a religion editor at Pew, wrote in an analysis of the data.
The metropolitan areas that “stand out” include Seattle, where 37 percent of residents have no religious affiliation, and just 52 percent of the population identifies as Christian. Other cities with high numbers of “nones” include San Francisco (35 percent), Boston (33 percent), San Diego (27 percent), and Phoenix (26 percent).
Several major cities are home to large Catholic populations.
Leading the pack is Chicago (34 percent), followed by New York (33 percent), Los Angeles and San Diego (32 percent each), and Boston (29 percent).
Other cities in which at least a quarter or more of its residents identify as Catholic include Miami (27 percent), Philadelphia (26 percent), and San Francisco (25 percent).