List of countries by irreligion (English Wikipedia)

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gallup-international.bg

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"Religiously Unaffiliated". The Global Religious Landscape: A Report on the Size and Distribution of the World’s Major Religious Groups as of 2010. Pew Research Center’s Forum on Religion & Public Life. 18 December 2012. Archived from the original on 9 July 2024. Retrieved 4 November 2024.

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"Global Index of Religion and Atheism" (PDF). WIN/Gallup International. Archived from the original (PDF) on 16 October 2012. Retrieved 13 January 2015.
"Religion prevails in the world" (PDF). Gallup International. 14 November 2017. Archived from the original (PDF) on 14 November 2017. Retrieved 27 February 2018.
"The Global Religious Landscape". The Global Religious Landscape: A Report on the Size and Distribution of the World’s Major Religious Groups as of 2010. Pew Research Center’s Forum on Religion & Public Life. 18 December 2012. Archived from the original on 26 December 2018. Retrieved 4 November 2024.
"Religiously Unaffiliated". The Global Religious Landscape: A Report on the Size and Distribution of the World’s Major Religious Groups as of 2010. Pew Research Center’s Forum on Religion & Public Life. 18 December 2012. Archived from the original on 9 July 2024. Retrieved 4 November 2024.
"Religion prevails in the world" (PDF). Gallup International. 14 November 2017. Archived from the original (PDF) on 14 November 2017. Retrieved 27 February 2018.
"GLOBAL INDEX OF RELIGIOSITY AND ATHEISM – 2012" (PDF). WIN-Gallup International. 27 July 2012. Archived from the original (PDF) on 21 October 2013. Retrieved 14 November 2015.

"Losing our Religion? Two-Thirds of People Still Claim to be Religious" (PDF). WIN/Gallup International. 13 April 2015.
"Religion prevails in the world" (PDF). Gallup International. 14 November 2017. Archived from the original (PDF) on 14 November 2017. Retrieved 27 February 2018.
"Religion prevails in the world" (PDF). Gallup International. 14 November 2017. Archived from the original (PDF) on 14 November 2017. Retrieved 27 February 2018.
"WIN-Gallup International 'Religiosity and Atheism Index' reveals atheists are a small minority in the early years of 21st century". WIN-Gallup International. Retrieved 14 November 2015.
"GLOBAL INDEX OF RELIGIOSITY AND ATHEISM – 2012" (PDF). WIN-Gallup International. 27 July 2012. Archived from the original (PDF) on 21 October 2013. Retrieved 14 November 2015.