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

Complete List

Ranking	Region	Adherent	Percent
1	Eastern Asia	104,736,802	6.7
2	Western Europe	5,417,678	2.9
3	Northern Europe	2,427,975	2.5
4	Southern Europe	3,261,044	2.1
5	Australia/New Zealand	455,098	1.8
6	Eastern Europe	4,559,233	1.6
7	Caribbean	645,157	1.5
8	South-Eastern Asia	6,476,720	1.1
9	Northern America	2,013,197	0.6
10	South America	2,018,972	0.5
11	South-Central Asia	4,553,744	0.3
12	Polynesia	1,582	0.2
12	Southern Africa	140,908	0.2
13	Western Asia	436,554	0.2
14	Central America	237,018	0.2
15	Middle Africa	103,360	0.1
15	Northern Africa	166,995	0.1
16	Melanesia	5,201	0.1
17	Micronesia (Region)	238	0.0
18	Eastern Africa	112,960	0.0
19	Western Africa	69,818	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]