Nations (population 200,000+) with the most Muslims according to the World Christian Database (2005).

Complete List

Ranking	Nation	Adherents	Percent
1	Somalia	9,335,791	99.8
2	Afghanistan	29,037,669	99.7
3	Tunisia	10,323,881	99.5
4	Western Sahara	526,829	99.4
5	Mauritania	3,335,686	99.1
6	Yemen	24,032,439	99.1
7	Morocco	32,012,962	98.9
8	Iran	74,059,995	98.6
9	Maldives	309,086	98.4
10	Comoros	679,208	98.3
11	Algeria	34,685,807	97.9
12	Turkey	73,745,237	97.4
13	Iraq	30,626,040	97.3
14	Djibouti	852,041	96.9
15	Libya	6,325,171	96.6
16	Pakistan	177,658,575	96.2
17	Jordan	6,076,486	93.9
18	Saudi Arabia	24,401,462	93.0
19	Niger	14,760,051	92.9
20	Syria	20,877,202	92.8
21	Kosovo	1,866,993	89.6
22	Senegal	11,447,835	89.0
23	Bangladesh	146,090,117	88.9
24	Turkmenistan	4,578,731	88.4
25	Oman	2,558,375	88.1
26	Azerbaijan	7,833,493	87.7
27	Egypt	73,608,121	87.1
28	Mali	11,559,783	86.8
29	Tajikistan	6,114,629	86.4
30	Kuwait	2,636,341	86.4
31	Gambia, The	1,507,387	86.1
32	Bahrain	674,631	83.6
33	Qatar	1,259,535	83.5
34	Uzbekistan	22,967,730	82.6
35	Israeli Occupied Territories (Palestine)	3,554,047	80.6
36	Indonesia	183,700,584	79.0
37	United Arab Emirates	3,586,584	76.2
38	Sudan	30,816,902	71.4
39	Kyrgyzstan	3,864,409	69.6
40	Guinea	7,093,432	68.7
41	Albania	1,960,993	61.9
42	Lebanon	2,470,012	58.1
43	Chad	6,591,582	57.3
44	Malaysia	15,800,061	56.6
45	Brunei	227,370	55.9
46	Bosnia and Herzegovina	2,083,765	55.4
47	Kazakhstan	8,134,802	51.6
48	Burkina Faso	8,374,739	51.4
49	Eritrea	2,571,105	49.2
50	Sierra Leone	2,708,204	46.4
51	Nigeria	71,845,953	45.4
52	Guinea-Bissau	690,279	41.9
53	Ethiopia	29,467,942	34.7
54	Tanzania	14,241,731	31.6
55	Cote d'Ivoire	6,767,030	31.4
56	Macedonia	591,868	29.0
57	Benin	2,344,975	25.5
58	Cyprus	192,780	21.9
59	Cameroon	3,999,052	20.0
60	Togo	1,312,333	19.4
61	Israel	1,408,179	19.3
62	Ghana	4,613,176	19.0
63	Singapore	901,865	18.7
64	Mauritius	218,491	16.9
65	Mozambique	3,890,627	16.6
66	Montenegro	103,001	16.5
67	Liberia	657,867	16.0
68	Suriname	83,171	15.9
69	Central African Republic	659,954	14.7
70	India	166,097,980	13.7
71	Malawi	2,070,209	13.2
72	Bulgaria	907,627	12.1
73	Uganda	3,612,040	10.7
74	Georgia	443,202	10.5
75	Russia	14,585,122	10.4
76	Sri Lanka	1,948,399	9.6
77	France	5,354,443	8.6
78	Guyana	62,726	8.2
79	Trinidad and Tobago	96,554	7.2
80	Serbia	542,185	7.0
81	Kenya	2,834,963	6.9
82	Philippines	6,164,477	6.6
83	Thailand	4,377,997	6.4
84	Fiji	53,240	6.2
85	Netherlands	1,025,443	6.2
86	Mongolia	134,608	5.0
87	Rwanda	491,571	4.8
88	Gabon	69,410	4.6
89	Germany	3,743,461	4.6
90	Austria	374,476	4.5
91	Switzerland	326,166	4.3
92	Greece	473,452	4.2
92	Nepal	1,263,049	4.2
93	Reunion	34,876	4.2
94	Equatorial Guinea	28,053	4.1
95	Timor-Leste	44,213	3.8
96	Burma (Myanmar)	1,904,675	3.8
97	Belgium	392,416	3.7
98	Denmark	200,130	3.7
99	Norway	143,351	3.0
100	Sweden	261,122	2.8
101	Cape Verde	14,210	2.8
102	New Caledonia	7,010	2.8
103	United Kingdom	1,640,725	2.7
104	Italy	1,473,676	2.5
105	Armenia	72,820	2.4
106	South Africa	1,185,404	2.4
107	Canada	792,064	2.3
108	Croatia	100,806	2.3
109	Ukraine	1,000,343	2.2
110	Madagascar	399,334	2.0
111	Australia	424,093	2.0
112	Argentina	791,767	2.0
112	Cambodia	293,341	2.0
113	Slovenia	36,947	1.8
114	China	20,843,228	1.6
114	Spain	713,136	1.6
115	United States (General)	4,805,776	1.5
116	Congo, Republic of the	52,253	1.4
117	Burundi	117,414	1.4
118	Hong Kong	94,042	1.3
119	Congo, Democratic Republic of the	728,142	1.1
119	Zambia	141,229	1.1
120	Luxembourg	4,962	1.0
121	Barbados	2,443	1.0
122	French Guiana	2,119	0.9
123	New Zealand	35,670	0.8
124	Zimbabwe	92,621	0.7
125	Panama	25,268	0.7
126	Ireland	30,543	0.7
127	Swaziland	7,840	0.7
128	Angola	110,225	0.6
129	Belize	1,578	0.5
130	Moldova	16,391	0.5
131	Finland	24,184	0.5
132	Chile	73,958	0.4
133	Romania	88,847	0.4
134	Taiwan	91,324	0.4
135	Guadeloupe	1,728	0.4
136	Venezuela	95,555	0.3
137	Solomon Islands	1,691	0.3
138	Estonia	3,701	0.3
139	Botswana	5,418	0.3
140	Belarus	25,259	0.3
141	Latvia	5,655	0.3
141	Malta	1,009	0.3
142	Hungary	23,526	0.2
142	Namibia	5,386	0.2
142	Portugal	26,120	0.2
143	Bhutan	1,593	0.2
144	Martinique	881	0.2
145	Macau	1,096	0.2
146	Lithuania	6,266	0.2
147	Vietnam	158,958	0.2
148	Honduras	11,156	0.2
148	Korea, (South) Republic of	71,049	0.2
149	Japan	182,639	0.1
150	Laos	7,594	0.1
151	Brazil	192,780	0.1
152	Iceland	291	0.1
152	Jamaica	2,411	0.1
152	Mexico	103,650	0.1
153	Cuba	9,075	0.1
154	Colombia	22,826	0.1
154	Lesotho	959	0.1
155	El Salvador	1,740	0.0
155	Papua New Guinea	1,829	0.0
155	Puerto Rico	1,159	0.0
156	Bolivia	2,006	0.0
156	Dominican Republic	2,250	0.0
156	Haiti	2,404	0.0
156	Nicaragua	990	0.0
156	Poland	8,346	0.0
156	Uruguay	506	0.0
157	Czech Republic	1,322	0.0
157	Ecuador	1,873	0.0
157	Guatemala	1,150	0.0
157	Korea, (North) Democratic Republic of	2,399	0.0
157	Slovakia	520	0.0
158	Bahamas, The	0	0.0
158	Costa Rica	0	0.0
158	French Polynesia	0	0.0
158	Paraguay	0	0.0
158	Peru	743	0.0
158	Vanuatu	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]