Question: how many presidents of the united states were catholic

title: Religious affiliations of Presidents of the United States
text: The religious affiliations of Presidents of the United States can affect their electability , shape their stances on policy matters and their visions of society and also how they want to lead it . Speculation of Thomas Jefferson , Abraham Lincoln , and William Howard Taft being atheists was reported during election campaigns , while others , such as Jimmy Carter , used faith as a defining aspect of their campaigns and tenure to hold the office . Almost all of the presidents can be characterized as Christian , at least by upbringing , though some were unaffiliated with any specific religious body . Protestants predominate , with Episcopalians and Presbyterians being the most prevalent . There have been four Nontrinitarian presidents , and a single Roman Catholic president ( John F. Kennedy ) . No president thus far has been openly an atheist . However , it has been acknowledged that two US Presidents -- Thomas Jefferson and Andrew Johnson -- had no religious affiliation . 

Answer: answer: Almost all of the presidents can be characterized as Christian , at least by upbringing , though some were unaffiliated with any specific religious body . There have been four Nontrinitarian presidents , and a single Roman Catholic president ( John F. Kennedy ) .