The Religious Affiliations of U.S. Presidents
Nearly half the nation's presidents have been affiliated with the Episcopal or Presbyterian churches. John F. Kennedy remains the only Catholic to have held the nation's highest office. Only three U.S. presidents — Thomas Jefferson, Abraham Lincoln and Andrew Johnson — have been unaffiliated with a specific religious tradition.
View the fact sheet The Religious Affiliations of U.S. Presidents on the Pew Forum on Religion & Public Life Web site.