Refer to list of countries below, ranked from the least to the most religious; based on different polls (as identified). It’s interesting; one can clearly see that for the most part (with exceptions of course) the least developed countries of the world are also the most religious – no surprise there.
The United States is middle-of-the-pack; how pathetic. TGO
Source: Wikipedia
| Country | Gallup (2007–2008) | Dentsu (2006) | Zuckerman (2005) |
|---|---|---|---|
 China |
93% | 8 – 14% | |
 Estonia |
84% | 76% | 49% |
 Sweden |
83% | 25% | 46 – 85% |
 Denmark |
80% | 10% | 43 – 80% |
 Hong Kong |
78% | ||
 Norway |
78% | 31 – 72% | |
 Azerbaijan |
74% | ||
 Czech Republic |
74% | 64% | 54 – 61% |
 France |
73% | 43% | 43 – 54% |
 Japan |
73% | 52% | 64 – 65% |
 United Kingdom |
71% | 31 – 44% | |
 Finland |
69% | 12% | 28 – 60% |
 Mongolia |
69% | 9% | |
 Australia |
68% | 24 – 25% | |
 Netherlands |
66% | 55% | 39 – 44% |
 New Zealand |
66% | 20 – 22% | |
 Belarus |
65% | 48% | 17% |
 Cuba |
64% | 7% | |
 Russia |
63% | 48% | 24 – 48% |
 Albania |
63% | 8% | |
 Bulgaria |
62% | 30% | 34 – 40% |
 Latvia |
62% | 41% | 20 – 29% |
 Belgium |
61% | 35% | 42 – 43% |
 Vietnam |
61% | 46% | 81% |
 Hungary |
59% | 43% | 32 – 46% |
 Slovenia |
59% | 30% | 35 – 38% |
 Spain |
59% | 16% | 15 – 24% |
 Taiwan |
58% | 24% | |
 Germany |
57% | 25% | 41 – 49% |
 Uruguay |
57% | 12% | |
 Switzerland |
56% | 17 – 27% | |
 Canada |
55% | 26% | 19 – 30% |
 South Korea |
54% | 37% | 30 – 52% |
 Ukraine |
54% | 42% | 20% |
 Lithuania |
52% | 19% | 13% |
 Slovakia |
51% | 23% | 10 – 28% |
 Israel |
50% | 15 – 37% | |
 Singapore |
49% | 13% | |
 Montenegro |
48% | ||
 Serbia |
45% | ||
 Kazakhstan |
43% | 11 – 12% | |
 Austria |
42% | 12% | 18 – 26% |
 Ireland |
42% | 7% | |
 Uzbekistan |
37% | ||
 Argentina |
36% | 13% | 4 – 8% |
 Chile |
29% | 34% | |
 Belize |
33% | ||
 United States |
33% | 20% | 3 – 9% |
 Kyrgyzstan |
31% | 7% | |
 Moldova |
31% | ||
 Venezuela |
31% | 27% | |
 Croatia |
30% | 13% | 7% |
 Greece |
30% | 4% | 16% |
 Luxembourg |
30% | ||
 Armenia |
29% | 14% | |
 Bosnia and Herzegovina |
29% | ||
 Jamaica |
29% | ||
 Mexico |
29% | 21% | |
 Portugal |
27% | 11% | 4 – 9% |
 Italy |
26% | 18% | 6 – 15% |
 Kosovo |
26% | ||
 Cyprus |
24% | ||
 Iceland |
4% | 16 – 23% | |
 Poland |
23% | 5% | |
 Botswana |
22% | ||
 Georgia |
22% | ||
 Haiti |
21% | ||
 Tajikistan |
21% | ||
 Macedonia |
20% | ||
 Trinidad and Tobago |
19% | ||
 Romania |
18% | 2% | |
 Zimbabwe |
18% | ||
 Dominican Republic |
17% | 7% | |
 Ecuador |
17% | ||
 India |
17% | 7% | |
 Iraq |
17% | ||
 Nicaragua |
17% | ||
 Iran |
16% | 1% | |
| Northern Ireland |
16% | ||
 Costa Rica |
15% | ||
 El Salvador |
15% | ||
 Kuwait |
15% | ||
 Malaysia |
14% | ||
 North Korea |
15% | ||
 Peru |
14% | 5% | |
 Lebanon |
13% | ||
 Puerto Rico |
13% | 11% | |
 Bolivia |
12% | ||
 Brazil |
12% | ||
 Burkina Faso |
12% | ||
 Colombia |
12% | ||
 South Africa |
12% | 11% | |
 Algeria |
11% | ||
 Cambodia |
11% | ||
 Guatemala |
11% | ||
 Honduras |
11% | ||
 Panama |
11% | ||
 Philippines |
5% | 11% | |
 Togo |
11% | ||
 Ethiopia |
10% | ||
 Rwanda |
10% | ||
 Mozambique |
9% | ||
 Palestinian Authority |
9% | ||
 Paraguay |
9% | ||
 Turkey |
9% | 3% | |
 Burundi |
8% | ||
 Namibia |
8% | ||
 Tunisia |
8% | ||
 Uganda |
8% | 1% | |
 Angola |
7% | ||
 Chad |
7% | ||
 Ghana |
7% | ||
 Madagascar |
7% | ||
 Nepal |
7% | ||
 Benin |
6% | ||
 Cameroon |
6% | ||
 Central African Republic |
6% | ||
 Liberia |
6% | ||
 Serbia and Montenegro |
6% | ||
 Mali |
5% | ||
 Mauritania |
5% | ||
 Nigeria |
5% | 1% | |
 Jordan |
4% | ||
 Kenya |
4% | ||
 Sudan |
4% | ||
 Thailand |
4% | ||
 Yemen |
4% | ||
 Afghanistan |
3% | ||
 Guinea |
3% | ||
 Laos |
3% | ||
 Myanmar |
3% | ||
 Niger |
3% | ||
 Pakistan |
3% | ||
 Saudi Arabia |
3% | ||
 Zambia |
3% | ||
 Democratic Republic of the Congo |
2% | ||
 Djibouti |
2% | ||
 Malawi |
2% | ||
 Morocco |
2% | ||
 Senegal |
2% | ||
 Sierra Leone |
2% | ||
 Tanzania |
2% | 2% | |
 United Arab Emirates |
2% | ||
 Bangladesh |
1% | ||
 Indonesia |
1% | ||
 Malta |
1% | ||
 Sri Lanka |
1% | ||
 Egypt |
1% |
