New York City: Largest Catholic Population in the US

New York City has the largest Catholic population of any US city. Per the 2020 American Community Survey, an estimated 2.8 million Catholics reside there – about 34.5% of the city's total population, the highest percentage among large US cities.

The Archdiocese of New York, covering the city and surrounding areas, serves over 2.5 million Catholics and is one of the nation's largest and most influential dioceses.