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Largest Religious Groups:

The 16 U.S. faith groups and ethical systems with memberships over 1 million are:

Denomination Membership in millions
Roman Catholic Church 60.191
Baptist Churches * 36.613
Non-religious * 23.0
Methodist Churches 13.533
Pentecostal Churches * 10.606
Lutheran Churches 8.35
Eastern Orthodox Churches 5.302
Islam 5.1 (estimates vary greatly)
Latter-Day Saints * 4.766 (Mormon)
Judaism 4.3
Presbyterian Churches 4.193
Episcopal Church 2.505
Reformed Churches 2.039
Churches of Christ 1.651
Atheists * 1.5
Neopagans * 1.0 (estimates vary greatly)

* Believed to be rapidly increasing in numbers (on a percentage basis)

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World status

The 1999 Catholic Almanac reports that there are 61.5 million Catholics in the U.S.; they comprise 22.7% of the population. This makes the United States the third largest Roman Catholic country in the world, after Brazil and Mexico. These numbers are probably inflated, relative to most Protestant and other religious groups because the Catholic church counts as members everyone who has been baptized into the faith.

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Sponsored link:

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Books on the diversity of American religions:

These are typically really large books that are somewhat expensive. If you buy one, we would really appreciate it if you would order it via its the Amazon.com link below. It costs you the same, but we make a commission on the sale.

bulletRobert Broderick, "The Catholic Encyclopedia," Thomas Nelson, (1990). Read reviews or order this book safely from Amazon.com online book store. Discusses beliefs of the Roman Catholic Church.
bulletStephen Galzier, "Encyclopedia of African and African-American Religions," Routledge (2001). Read reviews or order this book safely from Amazon.com online book store
bulletNorman Geisler, "Baker Encyclopedia of Christian Apologetics," Baker Book House, (1999). Read reviews or order this book safely from Amazon.com online book store This is written from a conservative Christian perspective.
bulletM.P. Hall, "The Secret Teachings of All Ages: An encyclopedic Outline of Masonic, Hermetic, Quabbalistic & Rosicrucian Symbolical Philosophy," Philosophical Res. soc. (1994). Read reviews or order this book safely from Amazon.com online book store
bulletArlene Hirshfelder, et al., "Encyclopedia of Native American Religions: An Introduction," Facts on File, Inc., (1999). Read reviews or order this book safely from Amazon.com online book store
bulletJ. Gordon Melton, "Encyclopedia of American Religions: Rel Creeds 3," Gale Group, (2002-AUG). Not yet published.  Read reviews or place an order for this book to be shipped later
bulletLarry Murphy, et al., "Encyclopedia of African American Religions," Garland Publ., (1993). Read reviews or order this book safely from Amazon.com online book store

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  1. The World Almanac and Book of Facts, 1997, World Almanac Books, Mahwah NJ

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 Home page > Religious information menu > US Religions > here

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Copyright © 1996, 1997, and 1999 to 2002 incl., by Ontario Consultants on Religious Tolerance
Last updated: 2002-DEC-21
Author: B.A. Robinson

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