A comprehensive demographic study of more than 200 countries finds that there are 1.57 billion Muslims of all ages living in the world today, representing 23% of an estimated 2009 world population of 6.8 billion.

While Muslims are found on all five inhabited continents, more than 60% of the global Muslim population is in Asia and about 20% is in the Middle East and North Africa. However, the Middle East-North Africa region has the highest percentage of Muslim-majority countries. Indeed, more than half of the 20 countries and territories1 in that region have populations that are approximately 95% Muslim or greater.

More than 300 million Muslims, or one-fifth of the world’s Muslim population, live in countries where Islam is not the majority religion. These minority Muslim populations are often quite large. India, for example, has the third-largest population of Muslims worldwide. China has more Muslims than Syria, while Russia is home to more Muslims than Jordan and Libya combined.

Of the total Muslim population, 10-13% are Shia Muslims and 87-90% are Sunni Muslims. Most Shias (between 68% and 80%) live in just four countries: Iran, Pakistan, India and Iraq.

These are some of the key findings of Mapping the Global Muslim Population: A Report on the Size and Distribution of the World’s Muslim Population, a new study by the Pew Research Center’s Forum on Religion & Public Life. The report offers the most up-to-date and fully sourced estimates of the size and distribution of the worldwide Muslim population, including sectarian identity.

Previously published estimates of the size of the global Muslim population have ranged widely, from 1 billion to 1.8 billion.2 But these commonly quoted estimates often have appeared without citations to specific sources or explanations of how the figures were generated.

The Pew Forum report is based on the best available data for 232 countries and territories. Pew Forum researchers, in consultation with nearly 50 demographers and social scientists at universities and research centers around the world, acquired and analyzed about 1,500 sources, including census reports, demographic studies and general population surveys, to arrive at these figures – the largest project of its kind to date. (See Methodology for more detail.)

The Pew Forum’s estimate of the Shia population (10-13%) is in keeping with previous estimates, which generally have been in the range of 10-15%. Some previous estimates, however, have placed the number of Shias at nearly 20% of the world’s Muslim population.3 Readers should bear in mind that the figures given in this report for the Sunni and Shia populations are less precise than the figures for the overall Muslim population. Data on sectarian affiliation have been infrequently collected or, in many countries, not collected at all. Therefore, the Sunni and Shia numbers reported here are expressed as broad ranges and should be treated as approximate.

These findings on the world Muslim population lay the foundation for a forthcoming study by the Pew Forum, scheduled to be released in 2010, that will estimate growth rates among Muslim populations worldwide and project Muslim populations into the future. The Pew Forum plans to launch a similar study of global Christianity in 2010 as well. The Pew Forum also plans to conduct in-depth public opinion surveys on the intersection of religion and public life around the world, starting with a 19-country survey of sub-Saharan Africa scheduled to be released later this year. These forthcoming studies are part of a larger effort – the Global Religious Futures Project, jointly funded by The Pew Charitable Trusts and the John Templeton Foundation – that aims to increase people’s understanding of religion around the world.

Map: Distribution of Muslim Population by Country and Territory

Only countries with more than 1 million Muslims are shown

2009 Muslim population, the percentage of its population that is Muslim and the percentage of the world Muslim population it represents.

* Indicates the use of a source with a small enough sample size to make these estimates somewhat less reliable. Due to this greater margin of error, percentages are rounded to the nearest integer rather than to the first decimal place and are therefore more approximate (~). The only exception to this rule is the display of Turkey’s percentage of world population as 4.7% rather than ~ 5%.

“–” indicates that the number of Muslims is too small to be reliably estimated.

Map: World Distribution of Muslim Population

This “weighted” map of the world shows each country’s relative size based on its Muslim population. Figures are rounded to the nearest million. Click to enlarge.

Download the map

Asia Predominates

Two-thirds of all Muslims worldwide live in the 10 countries shown below. Of the 10 countries, six are in Asia (Indonesia, Pakistan, India, Bangladesh, Iran and Turkey), three are in North Africa (Egypt, Algeria and Morocco) and one is in Sub-Saharan Africa (Nigeria).

Countries with the Largest Number of Muslims Estimated 2009

Muslim Population Percentage of

Population that

is Muslim Percentage of

World Muslim

Population Indonesia 202,867,000 88.2% 12.9% Pakistan 174,082,000 96.3 11.1 India 160,945,000 13.4 10.3 Bangladesh 145,312,000 89.6 9.3 Egypt 78,513,000 94.6 5.0 Nigeria 78,056,000 50.4 5.0 Iran 73,777,000 99.4 4.7 Turkey* 73,619,000 ~98 4.7 Algeria 34,199,000 98.0 2.2 Morocco* 31,993,000 ~99 ~2 * Data for Turkey and Morocco come primarily from general population surveys, which are less reliable than censuses or large-scale demographic and health surveys for estimating minority-majority ratios (see Methodology). As a result, the percentage of the population that is Muslim in these two countries is rounded to the nearest integer.

Pew Research Center’s Forum on Religion & Public Life • Mapping the Global Muslim Population, October 2009

The bulk of the world’s Muslim population – more than six-in-ten (62%) – is located in Asia, a region that, for the purposes of this report, includes not only East Asian countries such as China but also countries as far west as Turkey. (For a complete breakdown of countries by region, see World Muslim Population by Region and Country.)

Muslim Population by Region Estimated 2009

Muslim Population Percentage of

Population that

is Muslim Percentage of

World Muslim

Population Asia-Pacific 972,537,000 24.1% 61.9% Middle East-North Africa 315,322,000 91.2 20.1 Sub-Saharan Africa 240,632,000 30.1 15.3 Europe 38,112,000 5.2 2.4 Americas 4,596,000 0.5 0.3 World Total 1,571,198,000 22.9 100.0 Note: The list of countries that make up each region can be found in the section titled “World Muslim Population by Region and Country.”

Pew Research Center’s Forum on Religion & Public Life • Mapping the Global Muslim Population, October 2009

Living as Majorities and Minorities

While 80% of the world’s Muslims live in countries where Muslims are in the majority, significant numbers – about one-fifth of the world’s Muslim population – live as religious minorities in their home countries. Of the roughly 317 million Muslims living as minorities, about 240 million – about three-quarters – live in five countries: India (161 million), Ethiopia (28 million), China (22 million), Russia (16 million) and Tanzania (13 million). Two of the 10 countries with the largest number of Muslims living as minorities are in Europe: Russia (16 million) and Germany (4 million).

These minority populations are often quite large. For example, India, a Hindu-majority country, has the third-largest population of Muslims worldwide. The Muslim population of Ethiopia is about as large as that of Afghanistan. China has more Muslims than Syria; Russia is home to more Muslims than Jordan and Libya combined; and Germany has more Muslims than Lebanon.

Countries with the Largest Number of Muslims Living as Minorities Estimated 2009

Muslim Population Percentage of

Population that

is Muslim Percentage of

World Muslim

Population India 160,945,000 13.4% 10.3% Ethiopia 28,063,000 33.9 1.8 China 21,667,000 1.6 1.4 Russia 16,482,000 11.7 1.0 Tanzania 13,218,000 30.2 0.8 Ivory Coast 7,745,000 36.7 0.5 Mozambique 5,224,000 22.8 0.3 Philippines 4,654,000 5.1 0.3 Germany* 4,026,000 ~5 <1 Uganda 3,958,000 12.1 0.3 * Data for Germany come in part from general population surveys, which are less reliable than censuses or large-scale demographic and health surveys for estimating minority-majority ratios (see Methodology). As a result, the percentage of the population that is Muslim in Germany is rounded to the nearest integer. Pew Research Center’s Forum on Religion & Public Life • Mapping the Global Muslim Population, October 2009

Of the 232 countries and territories included in this study, 50 are Muslim-majority. Out of these, however, more than six-in-ten (62%) have a smaller Muslim population than do Russia and China individually.

The Middle East-North Africa region contains the highest percentage of Muslim-majority countries compared with other regions. Of the 20 countries and territories in the region, 17 have a population that is more than 75% Muslim, with Israel, Lebanon and Sudan being the only exceptions. In comparison, only 12 of 61 countries in Asia, 10 of 50 countries in Sub-Saharan Africa and two of 50 countries in Europe (Kosovo and Albania) are 75% or more Muslim.

Sunni and Shia Populations

An overwhelming majority of Muslims are Sunnis, while an estimated 10-13% are Shias. This report estimates that there are between 154 million and 200 million Shia Muslims in the world today.

Between 116 million and 147 million Shias live in Asia, representing about three-quarters of the world’s Shia population (note that Iran is included in the Asia-Pacific region). Meanwhile, nearly a quarter of the world’s Shias (36 million to 44 million) live in the Middle East-North Africa.4 Looked at in a different way, 12-15% of the Muslim population in the Asia-Pacific region is Shia, as is 11-14% of the Muslim population in the Middle East-North Africa region. The figures for Shias are generally given as a range because of the limitations in the secondary-source data (see Methodology for Sunni-Shia Estimates).

Quick Definition: Sunnis and Shias Sunni Muslims and Shia Muslims (also known as Shiites) comprise the two main sects within Islam. Sunni and Shia identities first formed around a dispute over leadership succession soon after the death of the Prophet Muhammad in 632 A.D. Over time, however, the political divide between the two groups broadened to include theological distinctions and differences in religious practices as well.While the two sects are similar in many ways, they differ over conceptions of religious authority and interpretation as well as the role of the Prophet Muhammad’s descendants, for example.For readers seeking more detail on the categories used in this report, Sunnis include followers of the Hanafi, Shafi, Maliki and Hanbali schools of Islamic jurisprudence as well as the Wahhabi or Salafi movement. Shias include Ithna Asharis (Twelvers), Ismailis, Zaydis, Alevis and Alawites. There also are a few Muslim groups that are difficult to classify as either Sunni or Shia. These include Kharijites in Oman and the Nation of Islam movement in the United States, as well as the Druze, who are located primarily in and around Lebanon. Given the relatively small numbers of people associated with such groups, this report does not provide separate figures for them, but they are included in the overall Muslim population statistics. Readers should also note that there is no separate estimate for Sufis, whose spiritual and mystical practices have a following among both Sunnis and Shias. There are no reliable figures on the proportion of Muslims worldwide who follow Sufi practices.

Most Shias (between 68% and 80%) live in four countries: Iran, Pakistan, India and Iraq. Iran has 66 million to 70 million Shias, or 37-40% of the world’s total Shia population. Iraq, India and Pakistan each are home to at least 16 million Shias.

Sizeable numbers of Shias (1 million or more) are found in Turkey, Yemen, Azerbaijan, Afghanistan, Syria, Saudi Arabia, Lebanon, Nigeria and Tanzania. Shias constitute a relatively small percentage of the Muslim population elsewhere in the world. About 300,000 Shias are estimated to be living in North America, including both the U.S. and Canada, constituting about 10% of North America’s Muslim population.

In four countries – Iran, Azerbaijan, Bahrain and Iraq – Shia Muslims make up a majority of the total population.

Map: More Than a Third of the World’s Shia Muslims Live in Iran

Roll over a country bubble to see the percentage of its Muslim population that is Shia and the percentage of the world Shia population it represents.

Pew Research Center’s Forum on Religion & Public Life • Mapping the Global Muslim Population, October 2009

Countries with More Than 100,000 Shia Muslims Estimated 2009

Shia Population Approximate

Percentage of Muslim

Population that is Shia Approximate

Percentage of World

Shia Population Iran 66 – 70 million 90 – 95% 37 – 40% Pakistan 17 – 26 million 10 – 15 10 – 15 India 16 – 24 million 10 – 15 9 – 14 Iraq 19 -22 million 65 – 70 11 – 12 Turkey 7 – 11 million 10 – 15 4 – 6 Yemen 8 – 10 million 35 – 40 ~5 Azerbaijan 5 – 7 million 65 – 75 3 – 4 Afghanistan 3 – 4 million 10 – 15 ~2 Syria 3 – 4 million 15 – 20 ~2 Saudi Arabia 2 – 4 million 10 – 15 1 – 2 Nigeria <4 million <5 <2 Lebanon 1 – 2 million 45 – 55 <1 Tanzania <2 million <10 <1 Kuwait 500,000 – 700,000 20 – 25 <1 Germany 400,000 – 600,000 10 – 15 <1 Bahrain 400,000 – 500,000 65 – 75 <1 Tajikistan ~400,000 ~7 <1 United Arab Emirates 300,000 – 400,000 ~10 <1 United States 200,000 – 400,000 10 – 15 <1 Oman 100,000 – 300,000 5 – 10 <1 United Kingdom 100,000 – 300,000 10 – 15 <1 Bulgaria ~100,000 10 – 15 <1 Qatar ~100,000 ~10 <1 World Total 154 – 200 million 10 – 13 100 Note: Countries with an estimated Shia population of less than 1% of the country’s Muslim population are not listed. The figures for Shias are generally given in a range because of the limitations of the secondary-source data (see Methodology for Sunni-Shia Estimates). Figures may not sum to totals due to rounding. Pew Research Center’s Forum on Religion & Public Life • Mapping the Global Muslim Population, October 2009

Footnotes

1 For a definition of “territories,” see the methodology.

2 See, for example, CIA World Factbook; Foreign Policy magazine, May 2007; Who Speaks for Islam: What a Billion Muslims Really Think, 2008; Adherents.com; and IslamicPopulation.com.

3 See, for example, IslamicWeb.com; “Shia Muslims in the Middle East,” Council on Foreign Relations, June 2006; and “The Revival of Shia Islam,” Vali Nasr speaking at a Pew Forum event, July 2006.

4 The three-quarters figure for Asia was calculated by comparing the middle of the range of the estimates for Asia’s Shia population (about 132 million) with the middle of the range of the estimates for the world’s Shia population (about 177 million). The figure for the Middle East-North Africa was calculated by comparing the middle of the range of the estimates for the Middle East-North Africa’s Shia population (about 40 million) with the middle of the range of the estimates for the world’s Shia population (about 177 million).