- Buddhism > Buddhists: Amount of Buddhist residents.
- Buddhism > By Country > Buddhism > Buddhist total: Population of Buddhists by country.
- Christian > Mormon > Congregations: Total Congregations.
- Christian > Mormon > Members: Membership.
- Christian > Orthodox > Orthodox population: Population by religion, sex and urban/rural residence.
- Islam > Percentage Muslim: Percent of Muslims in each country.
- Major religion(s): Country major religions.
- Muslim > Muslim percentage of total population: Muslim percentage (%) of total population 2014 Pew Report.
- Muslim > Muslim population: Muslim population 2014 Pew Report.
- Religions: This entry includes a rank ordering of religions by adherents starting with the largest group and sometimes includes the percent of total population.
- Religions > All: This entry includes a rank ordering of religions by adherents starting with the largest group and sometimes includes the percent of total population.
- Secularism and atheism > Population considering religion important: Percentage of population surveyed in a Gallup Poll who answered the question “Is religion important in your daily life?” with “yes”. (Other possible answers were “no”, “don’t know” and “refuse to answer”).
- Secularism and atheism > Population considering religion unimportant: Percentage of population who says religion is not important in their daily lives. The survey was carried out within the Gallup Poll.
- Seventh-day Adventist Membership: This entry lists Seventh-day Adventist membership worldwide as of 2004. Membership is defined as baptised and active.
SOURCES: Wikipedia: Buddhism by country (Buddhism by Country); Wikipedia: Buddhism by country; Wikipedia: The Church of Jesus Christ of Latter-day Saints in France (Membership Statistics); United Nations Statistics Division. Source tables; International Religious Freedom Report 2004, U.S. State Department; watchtower.org - 2002 Report of Jehovah's Witnesses Worldwide; British Broadcasting Corporation 2014; Wikipedia: Islam by country (Table) ("Muslim Population by Country" . The Future of the Global Muslim Population . Pew Research Center . Retrieved 22 December 2011 .); CIA World Factbooks 18 December 2003 to 28 March 2011; CIA World Factbook, 22 August 2006; Wikipedia: Importance of religion by country (Countries); adventiststatistics.org 2004 Annual Report 31 December 2004
"Portugal Religion Stats", NationMaster. Retrieved from http://www.nationmaster.com/country-info/profiles/Portugal/Religion
"Portugal Religion Stats, NationMaster." 1976-2014. <http://www.nationmaster.com/country-info/profiles/Portugal/Religion>.
'Portugal Religion Stats, NationMaster', <http://www.nationmaster.com/country-info/profiles/Portugal/Religion> [assessed 1976-2014]
"Portugal Religion Stats", NationMaster [Internet]. 1976-2014. Avaliable from: <http://www.nationmaster.com/country-info/profiles/Portugal/Religion>.
"Portugal Religion Stats", NationMaster. Avaliable at: nationmaster.com. Assessed 1976-2014.
"Portugal Religion Stats, NationMaster," http://www.nationmaster.com/country-info/profiles/Portugal/Religion (assessed 1976-2014)
"Portugal Religion Stats", NationMaster, http://www.nationmaster.com/country-info/profiles/Portugal/Religion (last visited 1976-2014)
"Portugal Religion Stats", NationMaster, http://www.nationmaster.com/country-info/profiles/Portugal/Religion (as of 1976-2014)
- Portugal ranked first for jehovahs witnesses per 1000 amongst European Union in 2002.