Islam
Islam by country
Commentary
Notable countries
The highest shares are concentrated in Muslim-majority countries, led by the Maldives at 100%, followed closely by Morocco (99.9%), Somalia (99.8%), Afghanistan (99.7%), and Iran and Tunisia (99.5%). At the other end, several countries across the Americas and Oceania are listed at 0%, including Haiti, Ecuador, El Salvador, Uruguay, Cuba, Tonga, Tuvalu, Papua New Guinea, Palau, and Peru. A notable contrast is that while the global mean is 25.5%, many countries sit either near universal Muslim majorities or near zero, showing a highly uneven distribution.
Regional trends
Asia has the highest continental average at 51.45%, making it the main center of Muslim population share in this dataset. Africa also stands high at 38.74%, well above the global mean, while Europe is much lower at 8.464%. South America (1.8%), North America (1.013%), and Oceania (0.7571%) all have very low averages, indicating that Islam represents a relatively small share of the population in those regions overall.
Data source
The data come from Pew 2010 and measure the share of each country's population that is Muslim, in percent. Coverage includes 196 countries. A caveat is that the figures are from 2010, so they may not reflect more recent demographic change.
Interpretation
Higher values mean Islam makes up a larger share of a country's population, while lower values indicate a smaller Muslim presence. Because the metric is a population share rather than an absolute count, very high percentages reflect religious composition, not necessarily large total populations. Overall, the data show that Islam is dominant in parts of Asia and Africa but remains a small minority religion across most of Europe and much of the Americas and Oceania.