Mormonism and Islam are among the fastest growing religions in America, while just over half of all Americans are unaffiliated with any denomination, according to a major census of the country’s religious congregations published Wednesday by the Association of Statisticians of American Religious Bodies in Chicago.
The census found:
- 158-million (50.47% of the US population) unaffiliated with any religion
- Roman Catholic Church is the largest denomination with 59-million members (19.1% of the US population) but its membership is down 5% since the last religious census.
- Several Evangelical and conservative Protestant demoninations aggregately have 50-million members, making them the second-largest segment of the US religious community (14.3% of the US population), fueled primarily by a 29.5% increase in Seventh Day Adventists and a 14.9% increase in Assembly of God.
- Muslim population has increased by 166% to 2.6-million (0.82% of the US population)
- Mormon population (Church of Jesus Christ of Latter Day Saints) increased by 45.5% to 6.1-million (1.9% of the US population). Although Mormons are in all 50 states, 33% reside in Utah.
- Jews number 6.58-million (2% of the US population, concentrated mostly in the tri-state New York area, California and Florida.
- Buddhist population is at 1-million, mostly on the Pacific Coast.
- Mainstream Protestant denominations showed the largest losses of membership: Wesleyan -34.4%, United Church of Christ -24.4%, Disciples of Christ -22.8%, Presbyterian -22%, Evangelical Lutheran - 18.2%, Episcopal -15.7%, American Baptist -11.7%, Missouri Synod Lutheran -9.9%.