number of followers worldwide that protestants have?

Question

how many protestants in the world

Answer 1

According to Adherents.com, the populations of the Major Denominational Families of Christianity are:

Catholic = 1,050,000,000
Orthodox/Eastern Christian = 240,000,000
African indigenous sects (AICs) = 110,000,000
Pentecostal = 105,000,000
Reformed/Presbyterian/Congregational/United = 75,000,000
Anglican = 73,000,000
Baptist = 70,000,000
Methodist = 70,000,000
Lutheran = 64,000,000
Jehovah's Witnesses = 14,800,000
Adventist = 12,000,000
Latter Day Saints = 12,500,000
Apostolic/New Apostolic = 10,000,000
Stone-Campbell ("Restoration Movement") = 5,400,000
New Thought (Unity, Christian Science, etc.) = 1,500,000
Brethren (incl. Plymouth) = 1,500,000
Mennonite = 1,250,000
Friends (Quakers) = 300,000

With love in Christ.

Answer 2

Impossible to get an accurate number, there are protestants in some countries that are underground and uncountable. Churches are not required to report their memberships to any single source...and, who identifies as a protestant vs. Catholic is similarly difficult to sort out (are Catholics who have left left the holy roman see (Greek Orthodox for example) protestants? No... so... you see... this is an impossible question to answer.