BobRyan said:
if by "majority" you mean majority of Christian groups/denominations then you are right.
But if by "majority" you mean "majority of individuals" then we are confronted with how membership numbers are counted. One way of counting them has the Catholic Church at 1.4 Billion. (the problem with that method is that millions that are members of other churches but were at one time baptized as an infant - as Catholic -- would be counted both as a Catholic and also as some other denomination member)
Well? Year by year it is counted. It is always fluctuating. Those who aren't active or aren't part of a parish are not included.
If each year every parish does a census to see if they can still locate members added to their parish via baptism etc to see if they are members of another denomination, or no denomination etc - I have yet to find an official catholic source confirming that such is the case.
On the other hand, one might be registered for a parish based for very mundane reasons (to be married, or buried, or part of a baptism, confirmation etc, or they still consider themselves Catholic despite not practicing the faith).
In my view even if they do not attend but can be confirmed as claiming they still consider themselves Catholic, and members of that perish - then I think that number is still legit.
By all accounts, the RCC is the largest Christian Church on earth. The Church also keeps track of all its records. (Baptisms, Marriages, Confirmations, Deaths, Ordinations).
they are pretty good on accounting additions to membership - (which is true of almost all denominations as well)
What is not so accurate is their ability to know that an infant baptized 40 years ago - is now a Baptist and should not be counted as Catholic any more.
I know a lot of former Catholics I have yet to find one that says he/she knows that they are no longer counted as Catholic by the Catholic church.
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AI says this about it
"The 1.4 billion figure for the global Catholic population is a good estimate, but not perfectly accurate due to the challenges of accurately tracking religious affiliation globally. The figure is based on data collected by the
Vatican's Central Office for Church Statistics, which is the best source for this information.
Here's why it's an estimate and not a precise count:
Defining "Catholic": .
The definition of a "Catholic" can be somewhat subjective. The Vatican's statistics typically count baptized Catholics, but active participation in the church is not always measured.
Data Collection Challenges:
.
Accurate data collection in some parts of the world can be difficult due to factors like limited resources, lack of infrastructure, or political instability.
Immigration and Migration:
.
The movement of people across borders can make it difficult to track the exact number of Catholics in different regions."
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When asked if the Catholic Census takes into account - Catholics that LEAVE the Catholic Church - -- AI Says this
"The Catholic Church census, as part of its annual
Annuario Pontificio (
Pontifical Yearbook),
does not track individuals who leave the Church. This is because a person's baptism remains a permanent sacrament, and leaving the Church does not automatically remove them from the Church's records. Individuals can still be considered
Catholics even if they are no longer active in the Church. "
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Go to any non-Catholic church in America and ask "how many here were baptized as a Catholic but no longer consider yourself a Catholic and in fact consider yourself to be a member of a non-Catholic church/ religion?" - a lot of hands go up.
Combine that with the fact that even the Catholic church admits it does not track individuals who leave - and you see the problem.
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By the same token - go to almost any area in America where there are 4 or more Adventist churches you will find that the total number of Adventists and former Adventists in the area is about 4 times that of what they claim as their current membership. People come and go.
All churches that have a fairly accurate system of tracking whether someone is actually a member or not - have the same problem over a time span of 50 or 60 years.