MOST POPULAR RELIGIOUS GROUPS(source: wikipedia)

15. TENRIKYO
No. of  followers(in millions) :  2
Culture                                     :  JAPANESE religion

Regions covered                    :  Japan,Brazil

14. SPIRITISM
No. of  followers(in millions) :  2.5
Culture                                     :  HUMANISM
Regions covered                    :  Brazil







13. CHENODOISM
No. of  followers(in millions) :  3
Culture                                     :  KOREAN religion
Regions covered                    :  South & North Korea







12. CAO DAI
No. of  followers(in millions) :  3.1
Culture                                     :  VIETNAMESE religion
Regions covered                    :  Vietnam






11. BAHA'i FAITH
No. of  followers(in millions) :  7.6-7.9
Culture                                     :  ABRAHAMIC religion
Regions covered                    :  in small patches of U.S.,Vietnam,Kenya,DR of Congo,Iran.







10. JAINISM
No. of  followers(in millions) :  8-12
Culture                                     :  INDIAN religion
Regions covered                    :  India & East Africa







9. JUDAISM
No. of  followers(in millions) :  14-18
Culture                                     :  ABRAHAMIC religion
Regions covered                    :  Israel and other patches around the world







8. SIKHISM
No. of  followers(in millions) :  24-28
Culture                                     :  INDIAN religion
Regions covered                    :  India, Canada, Australia, north america, southeast Asia, U.K., Europe and in other minorities worldwide.







7. SHINTO
No. of  followers(in millions) :  27-65
Culture                                     :  JAPANESE religion
Regions covered                    :  Japan







6. CHINESE  FOLK  RELIGION
No. of  followers(in millions) :  400-500
Culture                                     :  CHINESE religion
Regions covered                    :  East Asia, Vietnam,Singapore, Malaysia







5. FOLK RELIGIONS
No. of  followers(in millions) :  400-500
Culture                                     :  FOLK religions
Regions covered                    :  Asia,Africa,America







4. BUDDHISM
No. of  followers(in millions) :  500-700
Culture                                     :  INDIAN religion
Regions covered                    :  South Asia, East Asia, Australia, Japan, Singapore, Thailand   and some parts of Russia.







3. HINDUISM
No. of  followers(in millions) :  828-1000
Culture                                     :  INDIAN religion
Regions covered                    :  South Asia, Bali, Mauritius, Fiji, Guyana, Trinidad, Suriname        and all over the world with considerable large patches specially overseas(western countries).







2. ISLAM
No. of  followers(in millions) :  1300-1650
Culture                                     :  ABRAHAMIC religion
Regions covered                    :  Middle East, Northern Africa, Central Asia, South Asia, Western Africa, Malay Archipelago with large population centers existing in Eastern Africa, Balkan Peninsula, Russia and China.







1. CHRISTIANITY
No. of followers(in millions) :  2000-2300
Culture                                     :  CHRISTIAN religion
Regions covered                    :  Predominant in western world,Sub-Saharan Africa, Philippines, South-East Asia and in minorities in various countries.