Blood type distribution by country

This list concerns blood type distribution between countries and regions. Blood type (also called a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.

ABO and Rh distribution by country

ABO and Rh blood type distribution by country & dependency (population averages)

Country/Dependency	Population [1]	O+	A+	B+	AB+	O−	A−	B−	AB−
Albania [2]	3,074,579	34.1%	31.2%	14.5%	5.2%	6.0%	5.5%	2.6%	0.9%
Algeria [3]	43,576,691	40.0%	30.0%	15.0%	4.25%	6.6%	2.3%	1.1%	0.75%
Argentina [4]	45,479,118	48.9%	31.54%	8.0%	2.45%	4.9%	3.16%	0.8%	0.25%
Armenia [5]	3,021,324	29.0%	46.3%	12.0%	5.6%	2.0%	3.7%	1.0%	0.4%
Australia [6]	25,466,459	38.0%	32.0%	12.0%	4.0%	7.0%	6.0%	2.0%	1.0%
Austria [7]	8,859,449	30.0%	37.0%	12.0%	5.0%	6.0%	7.0%	2.0%	0.45%
Azerbaijan	10,205,810	29.8%	30.0%	21.1%	9.0%	3.3%	3.4%	2.4%	1.0%
Bahrain	1,505,003	48.48%	19.35%	22.61%	3.67%	3.27%	1.33%	1.04%	0.25%
Bangladesh [8]	164,098,818	29.21%	26.3%	33.12%	9.59%	0.53%	0.48%	0.6%	0.17%
Belarus	9,441,842	32.3%	30.6%	15.3%	6.8%	5.7%	5.4%	2.7%	1.2%
Belgium [9]	11,720,716	38.0%	34.0%	8.5%	4.0%	7.0%	6.0%	1.5%	1.0%
Bhutan [ citation needed ]	857,423	38.15%	29.27%	23.86%	8.41%	0.06%	0.04%	0.04%	0.01%
Bolivia	11,639,909	51.53%	29.45%	10.11%	1.15%	4.39%	2.73%	0.54%	0.1%
Bosnia and Herzegovina	3,835,586	31.0%	36.0%	12.0%	6.0%	5.0%	7.0%	2.0%	1.0%
Brazil [10]	211,715,973	36.0%	34.0%	8.0%	2.5%	9.0%	8.0%	2.0%	0.5%
Bulgaria	6,966,899	28.0%	37.4%	12.8%	6.8%	5.0%	6.6%	2.2%	1.2%
Burkina Faso [11]	21,382,659	39.94%	20.79%	26.34%	5.17%	3.36%	1.75%	2.22%	0.43%
Cambodia	16,926,984	46.7%	27.2%	18.5%	4.9%	1.3%	0.8%	0.5%	0.1%
Cameroon [12]	27,744,989	46.83%	24.15%	21.06%	4.29%	1.79%	0.92%	0.8%	0.16%
Canada [13]	37,694,085	39.0%	36.0%	7.6%	2.5%	7.0%	6.0%	1.4%	0.5%
Chile [14]	18,186,770	56.62%	27.16%	8.78%	1.90%	3.29%	1.63%	0.49%	0.13%
Colombia [15]	49,084,841	56.3%	26.11%	7.28%	1.47%	5.13%	2.7%	0.7%	0.31%
Costa Rica [16]	5,097,988	49.7%	28.5%	12.4%	3.0%	3.4%	1.9%	0.9%	0.2%
Croatia	4,227,746	29.0%	36.0%	15.0%	5.0%	5.0%	6.0%	3.0%	1.0%
Cuba	11,059,062	45.8%	33.5%	10.2%	2.9%	3.6%	2.8%	1.0%	0.2%
Cyprus [17]	1,266,676	35.22%	40.35%	11.11%	4.72%	3.85%	3.48%	0.87%	0.40%
Czech Republic [18]	10,702,498	27.0%	36.0%	15.0%	7.0%	5.0%	6.0%	3.0%	1.0%
Democratic Republic of the Congo	101,780,263	59.5%	21.3%	15.2%	2.4%	1.0%	0.3%	0.2%	0.1%
Denmark [19]	5,869,410	35.0%	37.0%	8.0%	4.0%	6.0%	7.0%	2.0%	1.0%
Dominican Republic	10,499,707	46.2%	26.4%	16.9%	3.1%	3.7%	2.1%	1.4%	0.2%
Ecuador	16,904,867	75.0%	14.0%	7.1%	0.5%	2.38%	0.7%	0.3%	0.02%
Egypt [20]	104,124,440	31.94%	35.12%	23.12%	9.74%	n/a	n/a	n/a	n/a
El Salvador [21]	6,481,102	62.0%	23.0%	11.0%	1.0%	1.0%	1.0%	0.7%	0.3%
Estonia [22]	1,228,624	29.5%	30.8%	20.7%	6.3%	4.3%	4.5%	3.0%	0.9%
Ethiopia	108,113,150	39.0%	28.0%	21.0%	5.0%	3.0%	2.0%	1.0%	1.0%
Fiji	935,974	43.0%	33.3%	16.5%	4.8%	1.0%	0.7%	0.5%	0.2%
Finland [23]	5,571,665	28.0%	35.0%	16.0%	7.0%	5.0%	6.0%	2.0%	1.0%
France [24]	67,848,156	36.5%	38.2%	7.7%	2.5%	6.5%	6.8%	1.4%	0.4%
Gabon [25]	2,284,912	57.55%	20.52%	17.19%	2.54%	1.35%	0.48%	0.41%	0.06%
Georgia [26]	4,933,674	34.8%	32.3%	11.9%	6.0%	6.2%	5.7%	2.1%	1.0%
Germany [27]	80,159,662	35.0%	37.0%	9.0%	4.0%	6.0%	6.0%	2.0%	1.0%
Ghana	29,340,248	53.8%	17.6%	18.3%	2.8%	4.5%	1.3%	1.3%	0.2%
Greece	10,607,051	37.8%	32.2%	11.0%	4.0%	6.6%	5.7%	2.0%	0.7%
Guinea	12,527,440	46.88%	21.64%	22.86%	4.52%	2.0%	0.9%	1.0%	0.2%
Honduras	9,235,340	57.5%	27.0%	7.8%	2.5%	2.7%	1.7%	0.6%	0.2%
Hong Kong	7,249,907	41.5%	26.13%	25.34%	6.35%	0.32%	0.17%	0.14%	0.05%
Hungary	9,771,827	27.0%	33.0%	16.0%	8.0%	5.0%	7.0%	3.0%	1.0%
Iceland [28]	350,734	46.8%	27.2%	9.0%	2.0%	8.2%	4.8%	1.6%	0.4%
India [29]	1,339,330,514	32.53%	21.80%	32.10%	7.70%	2.03%	1.36%	2.00%	0.48%
Indonesia	267,026,366	36.82%	25.87%	28.85%	7.96%	0.18%	0.13%	0.15%	0.04%
Iran	84,923,314	33.5%	27.0%	22.2%	7.0%	4.0%	3.0%	2.5%	0.8%
Iraq	38,872,655	32.1%	25.0%	25.6%	7.4%	3.6%	2.7%	2.7%	0.9%
Ireland [30]	5,176,569	47.0%	26.0%	9.0%	2.0%	8.0%	5.0%	2.0%	1.0%
Israel [31]	8,675,475	32.0%	34.0%	17.0%	7.0%	3.0%	4.0%	2.0%	1.0%
Italy	62,402,659	39.0%	36.0%	7.5%	2.5%	7.0%	6.0%	1.5%	0.5%
Ivory Coast [32]	28,088,455	47.24%	20.19%	21.7%	3.82%	3.73%	1.54%	1.48%	0.3%
Jamaica [33]	2,808,570	47.0%	23.0%	20.0%	3.0%	3.5%	2.0%	1.0%	0.5%
Japan [34]	125,507,472	29.9%	39.8%	19.9%	9.9%	0.15%	0.2%	0.1%	0.05%
Jordan [35]	10,909,567	33.03%	32.86%	16.56%	6.28%	4.4%	3.97%	2.06%	0.84%
Kazakhstan	19,091,949	30.7%	29.8%	24.2%	8.3%	2.3%	2.2%	1.8%	0.7%
Kenya	53,527,936	45.6%	25.2%	21.28%	4.2%	1.8%	1.0%	0.9%	0.02%
Laos [36]	7,574,356	37.52%	19.73%	35.36%	6.85%	0.2%	0.1%	0.2%	0.05%
Latvia	1,881,232	30.6%	31.0%	17.0%	6.0%	5.4%	6.0%	3.0%	1.0%
Lebanon	5,469,612	38.4%	32.3%	9.5%	3.2%	7.7%	6.5%	1.7%	0.7%
Libya	6,890,535	42.64%	28.86%	11.19%	4.5%	6.26%	4.24%	1.64%	0.67%
Liechtenstein	39,137	34.0%	37.0%	10.0%	4.0%	6.0%	6.5%	1.8%	0.7%
Lithuania	2,731,464	36.0%	33.0%	11.0%	4.0%	7.0%	6.0%	2.0%	1.0%
Luxembourg [37]	628,381	35.0%	37.0%	9.0%	4.0%	6.0%	6.0%	2.0%	1.0%
Macao	614,458	41.5%	26.1%	25.4%	6.3%	0.33%	0.17%	0.15%	0.05%
Malaysia	32,652,083	34.32%	30.35%	27.37%	7.46%	0.17%	0.15%	0.14%	0.04%
Malta	457,267	38.0%	41.0%	7.0%	3.0%	5.0%	4.5%	1.0%	0.5%
Mauritania [38]	4,005,475	46.3%	26.68%	17.47%	3.85%	2.8%	1.6%	1.1%	0.2%
Mauritius	1,379,365	38.3%	26.0%	25.0%	6.7%	1.7%	1.0%	1.0%	0.3%
Mexico [39]	128,649,565	59.09%	26.23%	8.53%	1.73%	2.73%	1.21%	0.40%	0.08%
Moldova [40]	3,364,496	28.5%	31.8%	17.6%	7.0%	5.0%	6.0%	3.0%	1.1%
Mongolia [41]	3,198,913	38.45%	22.89%	29.93%	7.83%	0.35%	0.21%	0.27%	0.07%
Morocco	35,561,654	42.3%	40.8%	14.0%	4.0%	4.5%	3.1%	1.5%	0.4%
Myanmar	56,590,071	35.7%	23.8%	32.7%	6.95%	0.3%	0.2%	0.3%	0.05%
Namibia [42]	2,678,191	50.58%	20.49%	20.21%	1.02%	4.22%	1.71%	1.69%	0.08%
Nepal	30,327,877	35.2%	36.3%	27.1%	2.6%	0.3%	0.2%	0.2%	0.1%
Netherlands [43]	17,280,397	38.2%	36.6%	7.7%	2.5%	6.8%	6.4%	1.3%	0.5%
New Zealand [44]	4,925,477	38.0%	32.0%	9.0%	3.0%	9.0%	6.0%	2.0%	1.0%
Nicaragua [45]	6,243,931	62.0%	20.0%	11.0%	4.0%	1.0%	1.0%	0.7%	0.3%
Nigeria [46]	219,463,862	50.23%	21.61%	19.59%	3.47%	2.7%	1.16%	1.05%	0.19%
North Korea	25,643,466	27.15%	31.08%	30.15%	11.32%	0.08%	0.1%	0.1%	0.03%
North Macedonia	2,125,971	30.0%	34.0%	15.0%	6.0%	5.0%	6.0%	3.0%	1.0%
Norway [47]	5,467,439	33.2%	41.6%	6.8%	3.4%	5.8%	7.4%	1.2%	0.6%
Pakistan [ citation needed ]	238,181,034	30.04%	21.53%	30.24%	8.83%	3.1%	2.22%	3.13%	0.91%
Papua New Guinea	7,259,456	48.0%	37.2%	9.6%	2.8%	1.0%	0.8%	0.4%	0.2%
Paraguay [48]	7,272,639	56.07%	28.32%	4.72%	1.38%	5.89%	2.97%	0.49%	0.15%
Peru [49]	31,914,989	70.0%	18.4%	7.8%	1.6%	1.4%	0.5%	0.28%	0.02%
Philippines [50]	109,180,815	45.9%	22.9%	24.9%	5.97%	0.1%	0.1%	0.1%	0.03%
Poland [51]	38,282,325	31.0%	32.0%	15.0%	7.0%	6.0%	6.0%	2.0%	1.0%
Portugal [52]	10,302,674	36.2%	39.8%	6.6%	2.9%	6.1%	6.8%	1.1%	0.5%
People's Republic of China [53]	1,397,897,720	34.2%	28.0%	27.8%	8.9%	0.3%	0.4%	0.3%	0.1%
Taiwan	23,603,049	43.9%	25.9%	23.9%	6.0%	0.17%	0.1%	0.01%	0.02%
Romania [54]	21,230,362	28.0%	37.0%	14.0%	7.0%	5.0%	6.0%	2.0%	1.0%
Russia [55]	145,478,097	36.0%	31.0%	19.0%	2.1%	6.0%	4.0%	1.0%	0.9%
Saudi Arabia [56]	34,173,498	47.8%	23.9%	17.0%	4.0%	4.0%	2.0%	1.0%	0.3%
Serbia	7,012,165	31.92%	35.28%	12.6%	4.2%	6.08%	6.72%	2.4%	0.8%
Singapore [57]	6,209,660	44.7%	23.9%	24.5%	5.6%	0.6%	0.3%	0.3%	0.1%
Slovakia [58]	5,440,602	27.2%	35.7%	15.3%	6.8%	4.8%	6.3%	2.7%	1.2%
Slovenia	2,102,678	31.0%	33.0%	12.0%	6.0%	7.0%	7.0%	3.0%	1.0%
Somalia [59]	12,094,640	52.8%	19.36%	12.32%	3.52%	7.2%	2.64%	1.68%	0.48%
South Africa [60]	56,463,617	39.0%	32.0%	12.0%	3.0%	6.0%	5.0%	2.0%	1.0%
South Korea [61]	51,835,110	26.8%	34.4%	24.0%	14.4%	0.1%	0.1%	0.1%	0.1%
Sri Lanka [62]	23,044,123	43.42%	21.0%	25.78%	5.13%	2.12%	1.04%	1.25%	0.26%
Spain [63]	50,015,792	35.0%	36.0%	8.0%	2.5%	9.0%	7.0%	2.0%	0.5%
Sudan	45,561,556	48.0%	27.7%	15.2%	2.8%	3.5%	1.8%	0.8%	0.2%
Sweden [64]	10,202,491	32.0%	37.0%	10.0%	5.0%	6.0%	7.0%	2.0%	1.0%
Switzerland [65]	8,403,994	35.0%	38.0%	8.0%	4.0%	6.0%	7.0%	1.0%	1.0%
Syria	19,398,448	43.0%	30.0%	14.0%	3.7%	5.0%	3.0%	1.0%	0.3%
Thailand	68,977,400	40.8%	16.9%	36.8%	4.97%	0.2%	0.1%	0.2%	0.03%
Tunisia [66]	11,811,335	41.86%	28.21%	16.38%	4.55%	4.14%	2.79%	1.62%	0.45%
Turkey [67]	82,017,514	29.8%	37.8%	14.2%	7.2%	3.9%	4.7%	1.6%	0.8%
Uganda [68]	44,712,143	49.29%	24.11%	20.29%	4.41%	1.01%	0.49%	0.41%	0.09%
Ukraine	43,922,939	32.0%	34.0%	15.0%	5.0%	5.0%	6.0%	2.0%	1.0%
United Arab Emirates	9,992,083	44.1%	21.9%	20.9%	4.3%	4.3%	2.1%	2.0%	0.4%
United Kingdom [69]	66,971,395	35%	30%	8%	2%	13%	8%	2%	1%
United States [70]	334,998,398	37.4%	35.7%	8.5%	3.4%	6.6%	6.3%	1.5%	0.6%
Uzbekistan [71]	30,842,796	29.42%	30.93%	24.98%	9.27%	1.68%	1.77%	1.42%	0.53%
Venezuela [72]	28,644,603	58.3%	28.2%	5.6%	1.9%	3.7%	1.8%	0.4%	0.1%
Vietnam	98,721,275	41.7%	21.9%	30.8%	4.98%	0.3%	0.1%	0.2%	0.02%
Yemen	29,884,405	47.84%	27.5%	15.32%	2.14%	3.66%	2.1%	1.17%	0.16%
Zimbabwe	14,546,314	63.3%	18.5%	14.6%	0.99%	1.7%	0.5%	0.4%	0.01%
World	7,772,850,805	39.81%	27.40%	20.86%	5.65%	2.68%	2.10%	1.14%	0.37%

  50.0% and above  40.0–49.9%  30.0–39.9%  20.0–29.9%  10.0–19.9%  5.0–9.9%

Ethnic distribution of ABO (without Rh) blood types [73] (This table has more entries than the table above but does not distinguish between Rh types.)
People group	O (%)	A (%)	B (%)	AB (%)
Australian Aboriginals	61	39	0	0
Abyssinians	43	27	25	5
Ainu (Japan)	17	32	32	18
Albanians	38	43	13	6
Great Andamanese	9	60	23	9
Arabs	34	31	29	6
Armenians	31	50	13	6
Asian Americans	40	28	27	5
Austrians	36	44	13	6
Bantus	46	30	19	5
Basques	51	44	4	1
Belgians	47	42	8	3
Bororo (Brazil)	100	0	0	0
Brazilians	47	41	9	3
Bulgarians	32	44	15	8
Bamar people	36	24	33	7
Buryats (Siberia)	33	21	38	8
Bushmen	56	34	9	2
Chinese-Canton	46	23	25	6
Chinese-Ningbo	35	32	25	9
Chinese-Yangzhou	31	32	27	10
Chinese-Peking	29	27	32	13
Chuvash	30	29	33	7
Croats	42	34	17	7
Czechs	30	44	18	9
Danes	41	44	11	4
Dutch	45	43	9	3
Egyptians	33	36	24	8
English	47	41	9	3
Inuit (Alaska)	38	44	13	5
Inuit (Greenland)	54	36	23	8
Estonians	34	36	23	8
Fijians	44	34	17	6
Finns	34	41	18	7
French	43	47	7	3
Georgians	46	37	12	4
Germans	41	43	11	5
Greeks	40	38	14	9
Romani People (Hungary)	29	27	35	10
Hawaiians	37	61	2	1
Hindus (Bombay)	55	18	26	1
Hungarians	36	43	19	8
Icelanders	56	32	10	3
Indians (India)	43	42	11	4
Native Americans (US)	79	16	4	1
Irish	52	35	10	3
Italians (Milan)	46	41	11	3
Japanese	30	38	22	10
Jews (Germany)	42	41	12	5
Jews (Poland)	42	40	13	5
Kalmuks	26	23	41	11
Kikuyu (Kenya)	60	19	20	1
Koreans	28	32	31	10
Sami people	29	63	4	4
Latvians	32	37	24	7
Lithuanians	40	34	20	6
Malays	62	18	20	0
Māori	46	54	1	0
Mayans	98	1	1	1
Moros	64	16	20	0
Navajo Indians	73	27	0	0
Nicobarese	74	9	15	1
Norwegians	39	50	8	4
Papuans (New Guinea)	41	27	23	9
Persians	38	33	22	7
Peruvian Indians	100	0	0	0
Filipinos	45	22	27	6
Poles	33	39	20	9
Portuguese	35	53	8	4
Romanians	33	43	16	8
Russians	33	36	23	8
Sardinians	50	26	19	5
Scots	51	34	12	3
Serbians	38	42	16	5
Shompen Nicobarese	100	0	0	0
Slovaks	42	37	16	5
South Africans	45	40	11	4
Spanish	38	47	10	5
Sudanese	62	16	21	0
Swedish	36	45	12	7
Swiss	38	50	9	3
Tatars	28	30	29	13
Thais	32	21	36	9
Turks	43	33	19	6
Ukrainians	37	40	18	6
African Americans	49	27	20	4
White Americans	45	40	11	4
Vietnamese	42	22	30	5

Blood group B has its highest frequency in the Middle East, where it ranks as the largest share of the population. In Southeast Asia its share of the population is lowest, especially in Indonesia, secondarily in East Asia, Northern Asia and neighboring Central Asia, and its incidence diminishes both towards the east and the west, falling to single-digit percentages in Netherlands, Norway, Portugal and Switzerland. ^{[74] [75]} It is believed to have been entirely absent from Native American and Australian Aboriginal populations prior to the arrival of Europeans in those areas. ^{[75] [76]}

Blood group A is associated with high frequencies in Europe, especially in Scandinavia and Central Europe, although its highest frequencies occur in some Australian Aboriginal populations and the Blackfoot Indians of Montana, US. ^{[77] [78]}

Maps of ABO alleles among native populations

In the ABO blood group system, there are three alleles: i, I^A, and I^B. As both I^A and I^B are dominant over i, only ii people have type O blood. Individuals with I^AI^A or I^Ai have type A blood, and individuals with I^BI^B or I^Bi have type B. Those with I^AI^B have type AB.

• 
  Map of allele I^A
  among native populations
• 
  Map of allele I^B
  among native populations
• 
  Map of blood group O
  among native populations

See also

• ABO blood group system
• Blood type

References

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75. The New Encyclopædia Britannica. Encyclopædia Britannica, Inc. 2002. ISBN   978-0-85229-787-2. ... The maximum frequency of the B gene occurs in Central Asia and northern India. The B gene was probably absent from Native Americans and Australian Aboriginal people before racial admixture occurred with the coming of the white man ...
76. Carol R. Ember, Melvin Ember (1973). Anthropology. Appleton-Century-Crofts. ISBN   9780390290007. ... Blood type B is completely absent in most North and South American Indians ...
77. Dean, Laura (2005). Blood group antigens are surface markers on the red blood cell membrane. National Center for Biotechnology Information (US). Blood Type A: Central and Eastern Europe. Type A is common in Central and Eastern Europe. In countries such as Austria, Denmark, Norway, and Switzerland, about 45–50% of the population have this blood type, whereas about 40% of Poles and Ukrainians do so. The highest frequencies are found in small, unrelated populations. For example, about 80% of the Blackfoot Indians of Montana have blood type A ...
78. Technical Monograph No. 2: The ABO Blood Group System and ABO Subgroups (PDF). Biotec. March 2005. Archived from the original (PDF) on 6 February 2007. ... The frequency of blood group A is quite high (25–55%) in Europe, especially in Scandinavia and parts of central Europe. High group A frequency is also found in the Aboriginal people of South Australia (up to 45%) and in certain American Indian tribes where the frequency reaches 35% ...