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

Complete List

Ranking	Region	Adherent	Percent
1	Western Asia	188,138,767	88.2
2	Northern Africa	167,247,315	87.8
3	Western Africa	119,017,821	46.3
4	South-Central Asia	559,280,980	34.6
5	South-Eastern Asia	147,562,989	26.4
6	Eastern Africa	60,901,689	21.6
7	Middle Africa	9,739,161	9.2
8	Southern Europe	8,233,079	5.6
9	Western Europe	10,407,853	5.6
10	Eastern Europe	12,891,853	4.3
11	Antarctica	143	2.7
12	Southern Africa	1,122,363	2.2
13	Northern Europe	1,773,178	1.9
14	Northern America	5,193,948	1.6
15	Australia/New Zealand	344,133	1.4
16	Eastern Asia	20,315,665	1.3
17	Melanesia	67,877	0.9
18	South America	1,255,038	0.3
19	Caribbean	121,000	0.3
20	Central America	368,701	0.3
21	Micronesia (Region)	101	0.0
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]