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

Complete List

Ranking	Region	Adherent	Percent
1	Eastern Asia	114,410,023	7.5
2	Western Europe	5,026,189	2.7
3	Northern Europe	2,417,072	2.5
4	Southern Europe	3,271,945	2.2
5	Eastern Europe	5,552,266	1.9
6	Caribbean	724,160	1.8
7	Australia/New Zealand	399,277	1.6
8	South-Eastern Asia	6,682,225	1.2
9	South America	1,812,443	0.5
10	Northern America	1,892,768	0.4
11	Southern Africa	166,251	0.3
12	South-Central Asia	4,820,021	0.3
13	Central America	103,802	0.3
14	Polynesia	1,510	0.2
15	Western Asia	446,822	0.2
16	Middle Africa	86,115	0.1
17	Northern Africa	140,725	0.1
18	Melanesia	4,612	0.1
19	Eastern Africa	117,233	0.0
19	Micronesia (Region)	224	0.0
20	Western Africa	74,883	0.0
21	Antarctica	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]