About the Church of Scientology®
Estimates of its membership numbers

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Current status:
Data provided by the Church of Scientology indicates that there are now over 7,300
Scientology groups, missions 1 and churches 2 in 163 countries around the world.
Also, 87,000
Scientology Volunteer Ministers,
3 help in their communities and are particularly active in times of disaster.
The actual membership of the Church of Scientology is difficult to assess. In fact, the size of
all religious groups is frequently impossible to estimate
for a variety of reasons:
 | Some groups, like the Roman Catholic Church, count all those who have
been baptized into the church, even if they have not stepped foot in one of
their churches in decades. |
 | Some faith groups measure only active, registered members. |
 | Others count all registered members even if they have been inactive for
years, |
 | Some include adherents and frequent visitors; others do not. |
 | Some count only adults. |
 | Some, like the Church of Christ, Scientist and
the Church of Satan do not release their
membership numbers. |
 | Some religions, like Wicca, are extremely
decentralized. No agency keeps track of the number of
Wiccan groups and solitary practitioners. |
 | Some denominations are believed to inflate their membership numbers. |
 | Some faith groups, like Neopagan traditions, have been
so heavily oppressed in the past that many individual members are still
reluctant to reveal their faith over the phone to public opinion pollsters.
Thus, accurate data cannot be obtained through polling. |
 | Some people do not identify themselves as from a single religious group.
For example, a person might consider themselves simultaneously an Atheist,
Humanist, free-thinker, and Unitarian Universalist. Their response would
depend upon the specific question asked. |
The number of Scientologists is difficult to estimate for two additional reasons:
 | Many Scientologists merge their existing religious beliefs with
Scientology beliefs and techniques. When asked about their religion, some
may identify as Christians, Jews, Muslims, or followers of another religion,
while others might identify themselves as Scientologists. Polling numbers
thus underestimate the actual number of people who use Scientology in their
daily life -- probably by a large margin. |
 | Some internal estimates of the number of people involved in Church of Scientology are
believed to include everyone who has had any involvement with Scientology --
perhaps by taking a Scientology course, or attending a religious service. |

Some estimates of the Church of Scientology membership numbers:
 | From the Church of Scientology: "Scientology®: A
reference work presented by the Church of Scientology International"
states: |
"Today its more than 6,000 churches, missions, related organizations,
groups and activities span the globe and minister the religion to more
than eight million people in 159 countries in over 66 languages."
4
The number of people to whom the Church of Scientology has ministered
includes the number of active Scientologists, as well as many other
individuals.
Some anti-Scientology individuals and web sites have stated
that the eight million figure is the total world membership claimed by the
Church of Scientology. The value is often carelessly quoted in the media and
in books. 5 In reality,
that number is believed to include everyone who has ever made significant contact
with the Church. This would include clergy and other employees, active
Scientology members, currently inactive members, as well as many who have
had at least a minor meaningful involvement with the church, perhaps by taking a
Scientology course, attending a lecture, going to a service, etc. Not included are attendees at
Scientology social betterment
groups in the fields of education, drug and criminal rehabilitation, and
moral rejuvenation.
The Scientology Today website has a section titled:
"Demographic and Statistical Facts about Scientology."
7 It gives an amazing amount of information on its organization
and membership. They state:
 | In 1997, 642,596 persons entered a Scientology church or mission for
the first time, participated in a service, obtained a book, or heard a
lecture. This is a substantial increase over the 493,685 persons counted in 1990. |
 | The number of countries where Scientology is active, the number of
community action and social reform groups, the number of missions and
organizations, the number of staff, number of auditing hours, student
points achieved, circulation of their three main magazines, Internet
site visitors and hits, book sales, etc. |
 | Demographic information about Scientologists worldwide -- their
background, attitudes, lifestyles, income, etc. |
 | However, they do not appear to reveal the number of active members. |
|
 | From Adherents.com: This is an independent web site that specializes
in publishing "adherent statistics and religious geography citations ... for
over 4,200 religions, churches, denominations, religious bodies, faith
groups..." etc.
When comparing the main religions of the world, they estimate that
Scientology has 500,000 members and ranks 22nd in size. However, they
caution that: |
"Sizes shown are approximate estimates, and are here mainly for the
purpose of ordering the groups, not providing a definitive number. This
list is sociological/statistical in perspective."
5
In their section on Scientology, they state:
"There are not 8 million people who, if taking a survey, would name
Scientology as their religious preference. One might generously estimate
up to one million worldwide, but the actual number who would fit this
criterion is probably under a half million. Adding up
organizationally-reported membership on a state-by-state,
country-by-country basis would yield a current membership figure of
about 750,000, according to a church critic. As with all religions, the
complete body of adherents represent a spectrum of participation,
including fully active members as well as non-attending or disengaged
sympathizers."
"Realistically, a figure lower than 750,000 seems be more reasonable
for this page's listing. Some documents suggest that even the tabulation
of 750,000 based on country-by-country/state-by-state
organizationally-provided data is quite out of date. Internal documents
suggest 100,000 active members -- which would easily yield an estimate
of a total of 600,000 or more, including one-time members, lapsed
members, and strong supporters. ..."
"If one eliminated from the total number of Christians in the world
all those who are counted as Christians only because they identify
themselves as such in a survey or census, even though they never
actually attend Christian services, study Christian literature, or make
behavioral changes based on Christian teachings beyond general societal
norms, one might obtain a similar downgrade in actual number of
effective adherents." 5

Sponsored links:

Estimates of the numbers of Scientologists in English speaking countries:
 | USA: The 2001 American Religious Identification Survey (ARIS) by the
Graduate Center of the City University of New York sampled American
adults randomly by telephone and asked them: "What is your religion, if any?" ARIS pollsters concluded that Scientology is the seventh largest
non-Christian religion in the U.S. It is exceeded in membership only by
Jews,
Muslims, Buddhists,
Unitarian Universalists, Hindus and followers of
Native
American Spirituality.
ARIS estimated that there were 55,000 American Scientology adults in 2001, an increase
from 45,000 in 1990. A linear extrapolation would suggest that there will be
about 61,000 Scientologists in 2008. However, these values are undoubtedly
an underestimate. They include only
those individuals whose primary religious self-identification is
as a Scientologist. There are many more American adults who consider
themselves Christians, who have
integrated Scientology beliefs and practices into their life, and who would
respond "Christian" to the pollster. So too, with many Jews, Muslims and
others who are simultaneously using Scientology beliefs and practices. |
 | Other countries: Wikipedia lists numbers of adults in
predominately English speaking countries who state that they are
Scientologists during various government censuses :
 | In Australia: 2,507 Scientologists out of a population of about 20.5
million in 2006. |
 | In Canada: 1,525 out of about 31.0 million people in 2001 |
 | In New Zealand: 282 Scientologists out of about 3.7 million people
in 2001. |
 | In the UK: 1,781 Scientologists out of a total of 52 million adults
responding to the optional census question on religion in 2001.
8,9 |
Again, these would be underestimates for the same reason as is the ARIS
poll value. |

References used:
- "Welcome to the Scientology Missions
International Website," at:
http://www.smi.org/ Data retrieved on 2008-FEB-02.
- "Find a Church of Scientology from around the
world," at:
http://www.churchofscientology.com/
- "Scientology Volunteer Ministers" at:
http://www.volunteerministers.org/
- "Scientology®: A reference work presented by
the Church of Scientology International," at:
http://www.bonafidescientology.org/
- "Major Religions of the World Ranked by Number of Adherents," at:
http://www.adherents.com/
- "Self Described Religious Identification of U.S. Adult Population
1990-2001: Other Religious Groups," American Religious Identification Survey
2001, at:
http://www.gc.cuny.edu/
- "Demographic and Statistical Facts about Scientology," Scientology
Today, at: http://www.scientologytoday.org/
- "Church of Scientology, Wikipedia, at:
http://en.wikipedia.org/wiki/Church_of_Scientology
- James R. Lewis,"New Religion
Adherents: An Overview of Anglophone Census and Survey Data". Marburg
Journal of Religion, 9 (1), 2004-SEP, at:
http://web.uni-marburg.de/ This is a PDF file.


Scientology, Dianetics and The Bridge are trademarks and service marks owned by Religious Technology Center.
Essay copyright © 2008 by Ontario Consultants on Religious Tolerance
First posted: 2008-FEB-02
Latest update: 2008-FEB-02
Author: B.A. Robinson



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