Demographics of the member states of the Organisation of Islamic Cooperation

This is a list of 57 member states of the Organisation of Islamic Cooperation sorted by their estimated population.

10 countries (Benin, Cameroon, Gabon, Guinea-Bissau, Guyana, Ivory Coast, Mozambique, Suriname, Togo and Uganda) are not Muslim-majority, but they are members of Organisation of Islamic Cooperation.

Also the list below only includes OIC members, not OIC observers, and does not include many other countries having a significant number of Muslims in their resident population from immigrants and their descendants (notably in North America, Europe, and even in Asia, such as China, India and Russia which are OIC observers).

Syria is still listed here (as a founding member state), even if its membership is suspended since 2022 (other member states have also been suspended in the past but fully reintegrated a few years later in the OIC).[a]

Total and Muslim population by OIC member state

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Rank OIC member state Total population
(all religions)
Percentage
Muslim (est.)
Population
Muslim (est.)
1   Indonesia 0,270,203,917 (2020[2]) 87.2 % 235,617,816
2   Pakistan 0,241,499,431 (2023[b]) 96.4 % 232,805,451
3   Nigeria 0,230,842,743 (2022[4]) 50.4 % 116,344,742
4   Bangladesh 0,169,828,911 (2022[5]) 89.8 % 152,506,362
5   Egypt 0,110,000,000 (2023[6]) 94.9 % 104,390,000
6   Iran 0,087,590,873 (2023[7]) 99.0 % plus 86,714,964
7   Turkey 0,085,372,377 (2023[8]) 98.0 % 83,664,929
8   Sudan 0,049,197,555 (2022[9]) 90.7 % 44,622,182
9   Uganda 0,047,729,952 (2023[10]) 11.5 % 5,488,944
10   Algeria 0,045,400,000 (2020[11]) 97.9 % 44,446,600
11   Iraq 0,041,266,109 (2023[12]) 99.0 % 40,853,448
12   Afghanistan 0,039,232,003 (2023[13]) 99.0 % plus 38,839,683
13   Morocco 0,037,984,655 (2022[14]) 99.0 % plus 37,604,808
14   Uzbekistan 0,036,024,900 (2023[15]) 96.7 % 34,836,078
15   Yemen 0,034,449,825 (2022[16]) 99.0 % plus 34,105,327
16   Malaysia 0,034,219,975 (2023[17]) 63.7 % 21,798,124
17   Mozambique 0,034,173,805 (2023[18]) 18.0 % 6,151,285
18   Saudi Arabia 0,032,175,224 (2022[19]) 93.0 % 29,922,958
19   Ivory Coast 0,030,900,000 (2023[20]) 42.5 % 13,132,500
20   Cameroon 0,030,135,732 (2023[21]) 18.3 % 5,514,839
21   Niger 0,025,396,840 (2023[22]) 98.4 % 24,990,491
22   Syria 0,022,933,531 (2023[23]) 92.8 % 21,282,317
23   Burkina Faso 0,022,489,126 (2023[24]) 61.6 % 13,853,302
24   Mali 0,021,359,722 (2023[25]) 92.4 % 19,736,383
25   Kazakhstan 0,020,000,000 (2023[26]) 70.4 % 14,080,000
26   Chad 0,018,523,165 (2023[27]) 55.3 % 8,678,212
27   Senegal 0,018,384,660 (2023[28]) 96.4 % 17,722,812
28   Benin 0,014,219,908 (2023[29]) 23.8 % 3,384,338
29   Guinea 0,014,190,612 (2023[30]) 45.1 % 6,399,966
30   Somalia 0,012,693,796 (2023[31]) 99.0 % plus 12,566,858
31   Tunisia 0,011,551,448 (2019[32]) 99.0 % plus 11,435,934
32   Jordan 0,011,548,886 (2024[33]) 97.2 % 11,225,517
33   Azerbaijan 0,010,420,515 (2023[34]) 96.9 % 10,097,479
34   Tajikistan 0,010,077,600 (2023[35]) 96.7 % 9,745,039
35   United Arab Emirates 0,009,282,410 (2023[36]) 76.9 % 7,138,173
36   Sierra Leone 0,008,908,040 (2023[37]) 78.0 % 6,948,271
37   Togo 0,008,703,961 (2023[38]) 14.0 % 1,218,555
38   Libya 0,007,252,573 (2023[39]) 96.6 % 7,005,986
39   Turkmenistan 0,007,057,841 (2022[40]) 93.0 % 6,563,792
40   Kyrgyzstan 0,007,037,590 (2022[41]) 88.0 % 6,193,079
41   Palestine 0,005,613,463 (2024[42]) 97.6 % 5,478,740
42   Lebanon 0,005,331,203 (2023[43]) 61.3 % 3,268,027
43   Mauritania 0,004,244,878 (2023[44]) 99.0 % plus 4,202,429
44   Oman 0,003,833,465 (2023[45]) 85.9 % 3,292,946
45   Kuwait 0,003,103,580 (2023[46]) 74.1 % 2,299,753
46   Qatar 0,002,795,484 (2020[47]) 67.7 % 1,892,543
47   Albania 0,002,793,592 (2022[48]) 56.0 % 1,564,412
48   Gambia 0,002,468,569 (2023[49]) 95.1 % 2,347,609
49   Gabon 0,002,397,368 (2023[50]) 11.2 % 268,505
50   Guinea-Bissau 0,002,078,820 (2023[51]) 45.1 % 937,548
51   Bahrain 0,001,501,635 (2020[52]) 70.3 % 1,055,649
52   Djibouti 0,000,976,143 (2023[53]) 96.9 % 945,883
53   Comoros 0,000,888,378 (2023[54]) 98.3 % 873,276
54   Guyana 0,000,817,607 (2024[55]) 6.4 % 52,327
55   Suriname 0,000,639,759 (2023[56]) 15.2 % 97,243
56   Maldives 0,000,515,132 (2022[57]) 98.4 % 506,890
57   Brunei 0,000,460,345 (2017[58]) 75.1 % 345,719
Total for OIC members 2,010,719,632 80.7 % approx. 1,622,726,299

Notes

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  1. ^ The membership of Syria in the OIC was suspended in August 2012 during the Syrian civil war.[1]
  2. ^ This figure does not include data for Pakistan-administered areas of Kashmir; Azad Kashmir and Gilgit-Baltistan.[3]

References

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  50. ^ "Gabon". The World Factbook (2024 ed.). Central Intelligence Agency. Retrieved 25 February 2024.
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