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

Complete List

Ranking	Nation	Adherents	Percent
1	Somaliland	3,490,810	99.7
2	Afghanistan	24,997,548	99.7
3	Tunisia	10,049,611	99.5
4	Western Sahara	437,793	99.4
5	Mauritania	2,936,123	99.1
6	Yemen	20,901,246	99.1
7	Morocco	29,991,256	98.8
8	Iran	68,480,915	98.7
9	Somalia	4,625,277	98.5
10	Maldives	290,676	98.4
11	Comoros	671,500	98.3
12	Algeria	32,198,945	98.0
13	Turkey	71,063,349	97.4
14	Iraq	27,173,698	97.1
15	Djibouti	779,541	96.9
16	Libya	5,718,567	96.6
17	Pakistan	151,803,178	96.0
18	Jordan	5,180,674	93.5
19	Saudi Arabia	21,924,162	92.9
20	Niger	12,243,066	92.3
21	Syria	17,418,887	92.2
22	Bangladesh	135,783,807	88.6
23	Turkmenistan	4,264,673	88.2
24	Senegal	10,381,709	88.2
25	Oman	2,203,315	87.9
26	Azerbaijan	7,307,895	87.5
27	Mali	10,070,407	86.7
28	Gambia, The	1,394,842	86.3
29	Kuwait	2,323,876	86.1
30	Egypt	62,528,782	85.8
31	Tajikistan	5,510,101	84.1
32	Bahrain	605,904	83.6
33	Qatar	662,317	83.2
34	Uzbekistan	21,916,551	82.4
35	Israeli Occupied Territories (Palestine)	3,019,222	80.3
36	Indonesia	177,790,964	78.7
37	United Arab Emirates	3,127,339	76.2
38	Sudan	26,292,910	71.3
39	Kyrgyzstan	3,602,373	69.2
40	Guinea	6,185,339	68.7
41	Albania	2,018,714	64.0
42	Lebanon	2,377,721	59.3
43	Chad	5,808,857	57.3
44	Malaysia	14,504,478	56.5
45	Bosnia and Herzegovina	2,169,797	55.4
46	Brunei	206,260	55.2
47	Kazakhstan	7,675,162	50.5
48	Eritrea	2,227,924	49.2
49	Burkina Faso	6,734,231	48.3
50	Sierra Leone	2,592,378	46.4
51	Nigeria	64,216,116	45.4
52	Guinea-Bissau	673,964	42.2
53	Ethiopia	26,744,388	33.9
54	Tanzania	12,204,667	31.7
55	Cote d'Ivoire	5,629,856	30.3
56	Macedonia	589,160	29.0
57	Benin	2,042,597	24.1
58	Cameroon	3,565,813	20.0
59	Serbia and Montenegro	2,031,247	19.4
60	Togo	1,207,534	19.4
61	Israel	1,293,560	19.3
62	Ghana	4,272,255	19.0
63	Singapore	806,862	18.7
64	Mauritius	208,749	16.9
65	Mozambique	3,413,670	16.6
66	Liberia	551,985	16.0
67	Surinam	71,818	15.9
68	Central African Republic	612,859	14.6
69	India	155,997,935	13.8
70	Malawi	1,746,951	13.2
71	Rwanda	1,174,523	12.7
72	Bulgaria	936,749	12.1
73	Uganda	3,247,678	11.2
74	Georgia	469,928	10.5
75	Russia	14,956,494	10.4
76	Sri Lanka	1,825,324	9.6
77	France	5,068,493	8.3
78	Guyana	60,951	8.2
79	Trinidad and Tobago	95,097	7.2
80	Kenya	2,500,976	7.0
81	Philippines	5,445,612	6.4
82	Thailand	3,952,962	6.3
83	Fiji	51,622	6.2
84	Netherlands	1,003,493	6.2
85	Mongolia	128,613	5.0
86	Gabon	59,685	4.6
87	Germany	3,679,652	4.5
88	Panama	142,709	4.4
89	Nepal	1,180,825	4.4
90	Austria	354,089	4.3
91	Greece	469,925	4.2
92	Reunion	32,716	4.2
93	Equatorial Guinea	19,596	4.1
94	Switzerland	290,554	3.9
95	Burma (Myanmar)	1,811,549	3.8
96	Belgium	371,026	3.6
97	Denmark	190,232	3.5
98	Norway	130,234	2.8
99	Cape Verde	14,039	2.8
100	New Caledonia	6,464	2.8
101	Sweden	237,423	2.6
102	United Kingdom	1,540,701	2.6
103	South Africa	1,190,428	2.5
104	Italy	1,438,080	2.5
105	Armenia	71,063	2.4
106	Croatia	104,041	2.3
107	Cambodia	306,435	2.2
108	Ukraine	1,005,817	2.1
109	Australia	399,607	2.0
110	Argentina	754,304	2.0
110	Madagascar	364,441	2.0
111	Slovenia	36,480	1.8
112	Canada	544,509	1.7
113	United States (General)	4,745,054	1.6
114	China	20,318,204	1.6
115	Congo, Republic of the	50,230	1.4
116	Burundi	108,314	1.4
117	Spain	586,302	1.4
118	Congo, Democratic Republic of the	631,752	1.1
119	Zambia	122,280	1.1
120	Bhutan	6,593	1.0
121	Luxembourgh	4,605	1.0
122	New Zealand	33,963	0.8
123	Barbados	2,206	0.8
124	Zimbabwe	96,106	0.7
125	Ireland	27,577	0.7
126	Swaziland	7,335	0.7
127	Angola	91,553	0.6
128	Belize	1,385	0.5
129	Moldova	17,770	0.5
130	Finland	23,732	0.5
131	Chile	70,332	0.4
131	Cyprus	2,798	0.4
132	Namibia	7,891	0.4
132	Taiwan	88,748	0.4
133	Guadeloupe	1,631	0.4
133	Romania	79,829	0.4
134	Venezuela	87,927	0.3
135	Solomon Islands	1,489	0.3
136	Estonia	3,716	0.3
137	Botswana	5,029	0.3
138	Belarus	25,805	0.3
139	Latvia	5,811	0.3
139	Malta	991	0.3
140	Hungary	23,794	0.2
140	Portugal	25,624	0.2
141	Martinique	859	0.2
142	Mexico	206,112	0.2
143	Lithuania	6,594	0.2
144	Vietnam	151,816	0.2
145	Honduras	10,010	0.2
145	Korea, (South) Republic of	70,125	0.2
146	Japan	183,936	0.1
147	Laos	6,683	0.1
148	Brazil	184,303	0.1
149	Iceland	261	0.1
149	Jamaica	2,369	0.1
150	Cuba	9,121	0.1
151	Colombia	22,158	0.1
151	Lesotho	913	0.1
152	El Salvador	1,873	0.0
152	Puerto Rico	1,145	0.0
153	Bolivia	1,836	0.0
153	Dominican Republic	2,083	0.0
153	Haiti	2,194	0.0
153	Nicaragua	929	0.0
153	Papua New Guinea	1,464	0.0
153	Poland	8,380	0.0
153	Uruguay	499	0.0
154	Czech Republic	1,294	0.0
154	Ecuador	1,776	0.0
154	Guatemala	1,017	0.0
154	Korea, (North) Democratic Republic of	2,362	0.0
154	Slovakia	517	0.0
155	Bahamas, The	0	0.0
155	Bougainville	0	0.0
155	Costa Rica	0	0.0
155	French Polynesia	0	0.0
155	Paraguay	0	0.0
155	Peru	687	0.0
155	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]