Country Estimated 2009 Muslim Population Percentage of Population that is Muslim Percentage of World Muslim Population Source and Year Afghanistan 28072000 99.7 1.8 WRD 2005 Albania 2522000 79.9 0.2 MICS 2005 Algeria 34199000 98.0 2.2 WRD 2005 American Samoa <0.1 WRD 2005 Andorra* 1000 ~1 <1 WVS 2005 Angola* 190000 ~1 <1 Pew Global 2002 … Continue reading Interactive Data Table: World Muslim Population by Country