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

Complete List

Ranking	Nation	Adherents	Percent
75	United States (General)	257,935,642	81.2
40	Brazil	177,737,086	91.0
139	China	114,364,041	8.6
74	Russia	114,041,632	81.3
15	Mexico	106,058,166	95.9
51	Philippines	83,077,538	88.7
112	Nigeria	72,023,815	45.5
19	Congo, Democratic Republic of the	64,685,125	95.4
88	Germany	58,016,298	70.7
147	India	57,550,490	4.7
78	United Kingdom	49,530,864	80.0
76	Italy	48,560,697	80.8
102	Ethiopia	48,130,691	56.6
17	Colombia	44,310,006	95.7
91	France	42,737,293	68.2
72	South Africa	41,246,645	81.7
46	Spain	40,846,826	90.1
68	Ukraine	37,607,945	82.8
32	Argentina	37,451,030	92.1
11	Poland	36,607,221	96.2
71	Kenya	33,433,529	81.8
59	Uganda	28,883,583	85.5
10	Peru	28,449,545	96.5
132	Indonesia	27,539,607	11.8
26	Venezuela	27,397,407	94.3
82	Canada	25,253,357	74.5
105	Tanzania	23,962,675	53.2
114	Korea, (South) Republic of	20,914,023	43.1
1	Romania	20,869,410	98.5
29	Angola	17,810,364	93.8
83	Australia	16,004,021	74.4
55	Chile	14,988,791	87.5
99	Ghana	14,897,251	61.2
3	Guatemala	13,998,153	97.4
4	Ecuador	13,372,523	97.1
79	Malawi	12,516,488	79.8
106	Mozambique	12,277,158	52.5
103	Cameroon	11,291,552	56.6
70	Zambia	10,882,211	82.1
96	Netherlands	10,657,313	64.0
130	Egypt	10,339,157	12.2
35	Greece	10,268,324	91.8
109	Madagascar	9,777,927	48.5
24	Dominican Republic	9,711,388	95.0
20	Haiti	9,708,438	95.3
48	Portugal	9,624,581	89.7
34	Bolivia	9,212,126	91.8
86	Zimbabwe	9,042,097	71.5
57	Rwanda	8,844,058	86.1
73	Belgium	8,717,080	81.5
56	Hungary	8,644,241	86.7
31	Burundi	7,912,820	92.9
140	Vietnam	7,529,976	8.5
6	Honduras	7,362,213	96.7
118	Cote d'Ivoire	7,120,883	33.0
84	Belarus	7,076,857	73.8
123	Sudan	7,066,413	16.4
80	Austria	6,683,617	79.7
101	Cuba	6,635,177	59.2
25	Papua New Guinea	6,531,443	94.8
67	Bulgaria	6,279,016	83.8
69	Switzerland	6,270,113	82.6
77	Serbia	6,254,752	80.5
18	Paraguay	6,168,430	95.5
94	Sweden	6,017,411	64.8
8	El Salvador	5,977,540	96.5
104	Czech Republic	5,822,900	55.9
12	Nicaragua	5,599,333	96.2
45	Finland	4,819,197	90.2
62	Denmark	4,658,016	85.0
58	Slovakia	4,631,822	85.6
5	Costa Rica	4,500,358	97.0
38	Norway	4,433,708	91.3
27	Ireland	4,322,881	94.2
113	Benin	4,032,141	43.8
37	Croatia	4,029,346	91.4
160	Pakistan	4,026,769	2.2
141	Burma (Myanmar)	3,986,432	7.9
7	Puerto Rico	3,864,393	96.7
61	Georgia	3,589,220	85.1
13	Moldova	3,429,376	95.9
47	Congo, Republic of the	3,374,210	89.8
122	Burkina Faso	3,303,851	20.3
43	Panama	3,174,065	90.5
111	Togo	3,096,132	45.7
89	New Zealand	3,014,485	70.1
92	Central African Republic	2,974,682	66.0
121	Chad	2,937,498	25.5
159	Japan	2,913,804	2.3
50	Lithuania	2,889,554	88.8
63	Armenia	2,621,481	84.8
135	Malaysia	2,484,099	8.9
110	Eritrea	2,468,663	47.3
64	Jamaica	2,308,209	84.6
97	Uruguay	2,153,247	63.9
126	Kazakhstan	2,128,806	13.5
49	Namibia	1,967,035	88.9
36	Lesotho	1,912,001	91.8
44	Slovenia	1,831,124	90.4
138	Sri Lanka	1,791,098	8.8
116	Liberia	1,659,410	40.5
90	Latvia	1,543,794	68.9
115	Bosnia and Herzegovina	1,542,176	41.0
117	Lebanon	1,508,660	35.5
144	Taiwan	1,417,553	6.0
41	Gabon	1,359,889	90.6
95	Macedonia	1,319,016	64.6
93	Botswana	1,286,951	65.1
145	Syria	1,169,358	5.2
150	Saudi Arabia	1,143,931	4.4
53	Swaziland	1,053,416	87.6
120	Albania	1,000,130	31.6
66	Timor-Leste	985,586	84.2
127	Hong Kong	948,538	13.4
87	Estonia	948,532	70.8
153	Nepal	904,305	3.0
98	Trinidad and Tobago	842,524	62.7
170	Thailand	831,662	1.2
174	Bangladesh	817,013	0.5
124	Singapore	786,528	16.3
128	Sierra Leone	741,773	12.7
54	Reunion	733,007	87.6
146	Senegal	648,064	5.0
85	Cyprus	632,275	71.9
52	Equatorial Guinea	614,555	88.7
129	United Arab Emirates	591,502	12.6
164	Iraq	564,747	1.8
100	Fiji	522,120	61.1
21	Solomon Islands	510,684	95.3
23	Cape Verde	487,583	95.1
81	Montenegro	486,230	77.7
162	Korea, (North) Democratic Republic of	475,332	2.0
14	Guadeloupe	447,699	95.9
42	Luxembourg	445,705	90.6
119	Mauritius	423,984	32.7
172	Iran	406,974	0.5
2	Malta	401,709	98.0
9	Martinique	391,621	96.5
107	Guyana	390,205	51.3
155	Mali	382,234	2.9
151	Guinea	377,231	3.7
169	Uzbekistan	348,366	1.3
143	Kyrgyzstan	335,626	6.1
33	Bahamas, The	318,150	92.0
16	Iceland	315,135	95.8
161	Cambodia	299,401	2.0
39	Belize	285,278	91.1
152	Azerbaijan	275,943	3.1
137	Kuwait	268,913	8.8
108	Suriname	267,198	51.0
28	French Polynesia	255,631	94.0
22	Barbados	244,712	95.2
30	Vanuatu	229,915	93.5
177	Turkey	219,391	0.3
60	New Caledonia	216,421	85.2
131	Guinea-Bissau	196,063	11.9
65	French Guiana	194,984	84.4
154	Laos	188,042	2.9
136	Kosovo	184,869	8.9
156	Jordan	182,200	2.8
158	Israel	177,208	2.4
157	Libya	176,803	2.7
133	Qatar	144,434	9.6
149	Oman	126,833	4.4
168	Tajikistan	101,074	1.4
163	Israeli Occupied Territories (Palestine)	81,951	1.9
167	Turkmenistan	79,465	1.5
148	Gambia, The	76,793	4.4
134	Bahrain	72,076	8.9
180	Algeria	61,721	0.2
176	Niger	56,070	0.4
125	Brunei	55,916	13.7
166	Mongolia	45,057	1.7
180	Yemen	41,765	0.2
142	Macau	39,625	7.2
182	Morocco	32,055	0.1
182	Afghanistan	29,992	0.1
179	Tunisia	22,976	0.2
165	Djibouti	15,288	1.7
178	Mauritania	8,845	0.3
171	Bhutan	6,579	0.9
183	Somalia	4,351	0.1
173	Comoros	3,587	0.5
175	Maldives	1,406	0.5
181	Western Sahara	817	0.2

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]