These Are The Largest Religious Groups In Some Major American Cities

Hint: It's probably Catholic or religiously unaffiliated.

If you live in a major metropolitan area in the U.S., chances are your city is predominantly Catholic, religiously unaffiliated or both.

Out of 30 major metro areas analyzed by the Public Religion Research Institute in 2014, all but nine have Catholicism and the religiously unaffiliated in the top two largest religious groups. The religiously unaffiliated are among the top three faith-related groups in each of the cities included in the PRRI’s report.

See the breakdown of religious traditions in major U.S. cities below:


The religiously unaffiliated skew younger than Catholics and other Christian groups, hinting at what further changes may occur in the religious demographics of U.S. cities in the years to come.

These are the polled cities with the largest Catholic populations:

Boston, Massachusetts

Catholic Populations of Major U.S. Cities

These are the polled cities with the largest unaffiliated populations:

Portland, Oregon

Religiously Unaffiliated Populations of Major U.S. Cities

These are the polled cities with the largest Protestant populations:

Nashville, Tennessee

Protestant Population of Major U.S. Cities

Christianity has maintained a prominent presence in American cities, though the population of adherents has declined over the years. But the religiously unaffiliated population continues to grow.

CORRECTION: An earlier version of this story misrepresented the list of most Catholic cities from the PRRI report as the most Catholic cities in the U.S.

Support HuffPost

Popular in the Community