The Catholic Church in the United States is part of the worldwide Catholic Church in communion with the Pope in Rome. With 70.4 million members, it is the largest religious denomination in the United States, comprising 22 % of the population as of 2017. The United States has the fourth largest Catholic population in the world after Brazil, Mexico and the Philippines, the largest Catholic minority population, and the largest English - speaking Catholic population. The central leadership body of the Catholic Church in the United States is the U.S. Conference of Catholic Bishops.
what percent of the us population is catholic
22 %