Regions of the world with the most Muslims according to the World Christian Database (2005).

Complete List

Ranking	Region	Adherent	Percent
1	Western Asia	187,118,189	88.2
2	Northern Africa	166,134,650	87.6
3	Western Africa	127,646,240	46.8
4	South-Central Asia	579,766,849	35.2
5	South-Eastern Asia	156,209,739	28.1
6	Eastern Africa	61,645,994	21.1
7	Middle Africa	10,748,853	9.6
8	Southern Europe	9,440,466	6.3
9	Western Europe	10,768,080	5.8
10	Eastern Europe	17,140,199	5.8
11	Antarctica	143	2.7
12	Northern Europe	2,165,597	2.3
13	Southern Africa	1,212,588	2.2
14	Australia/New Zealand	370,896	1.5
15	Eastern Asia	20,196,677	1.3
16	Northern America	5,534,612	1.3
17	Melanesia	59,889	0.8
18	Central America	157,923	0.4
19	South America	1,247,643	0.3
20	Caribbean	121,359	0.3
21	Micronesia (Region)	597	0.1
22	Polynesia	0	0.0

Source

The data presented in QuickLists are from a variety of sources including the U.S. Census Bureau's International Data Base, the U.S. State Department's International Religious Freedom Report, the United Nations Human Development Reports, and others.

[Further information about this data source]