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 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] 3,074,57934.1%31.2%14.5%5.2%6.0%5.5%2.6%0.9%
 Argentina 45,479,11845.4%34.26%8.59%2.64%8.4%0.44%0.21%0.06%
 Armenia[3] 3,021,32429.0%46.3%12.0%5.6%2.0%3.7%1.0%0.4%
 Australia[4] 25,466,45940.0%31.0%8.0%2.0%9.0%7.0%2.0%1.0%
 Austria[5] 8,859,44930.0%37.0%12.0%5.0%6.0%7.0%2.0%1.0%
 Azerbaijan 10,205,81029.8%30.0%21.1%9.0%3.3%3.4%2.4%1.0%
 Bahrain 1,505,00348.48%19.35%22.61%3.67%3.27%1.33%1.04%0.25%
 Bangladesh 162,650,85331.8%21.44%34.58%8.85%1.39%0.96%0.96%0.64%
 Belgium[6] 11,720,71636.0%37.0%9.0%3.0%6.0%7.0%1.0%1.0%
 Bolivia 11,639,90951.53%29.45%10.11%1.15%4.39%2.73%0.54%0.1%
 Bosnia and Herzegovina 3,835,58631.0%36.0%12.0%6.0%5.0%7.0%2.0%1.0%
 Brazil[7] 211,715,97336.0%34.0%8.0%2.5%9.0%8.0%2.0%0.5%
 Bulgaria 6,966,89928.0%37.4%12.8%6.8%5.0%6.6%2.2%1.2%
 Cambodia 16,926,98446.7%27.2%18.5%4.9%1.3%0.8%0.5%0.1%
 Cameroon 27,744,98942.8%38.8%12.0%3.3%1.4%1.2%0.4%0.1%
 Canada[8] 37,694,08539.0%36.0%7.6%2.5%7.0%6.0%1.4%0.5%
 Chile[9] 18,186,77056.62%27.16%8.78%1.90%3.29%1.63%0.49%0.13%
 China 1,394,015,97747.7%27.8%18.9%5.0%0.28%0.19%0.1%0.03%
 Colombia[10] 49,084,84156.3%26.11%7.28%1.47%5.13%2.7%0.7%0.31%
 Costa Rica[11] 5,097,98849.7%28.5%12.4%3.0%3.4%1.9%0.9%0.2%
 Croatia 4,227,74629.0%36.0%15.0%5.0%5.0%6.0%3.0%1.0%
 Cuba 11,059,06245.8%33.5%10.2%2.9%3.6%2.8%1.0%0.2%
 Cyprus[12] 1,266,67635.22%40.35%11.11%4.72%3.85%3.48%0.87%0.40%
 Czech Republic[13] 10,702,49827.0%36.0%15.0%7.0%5.0%6.0%3.0%1.0%
 Democratic Republic of the Congo 101,780,26359.5%21.3%15.2%2.4%1.0%0.3%0.2%0.1%
 Denmark[14] 5,869,41035.0%37.0%8.0%4.0%6.0%7.0%2.0%1.0%
 Dominican Republic 10,499,70746.2%26.4%16.9%3.1%3.7%2.1%1.4%0.2%
 Ecuador 16,904,86775.0%14.0%7.1%0.5%2.38%0.7%0.3%0.02%
 Egypt 104,124,44052.0%24.0%12.4%3.8%5.0%2.0%0.6%0.2%
 El Salvador[15] 6,481,10262.0%23.0%11.0%1.0%1.0%1.0%0.7%0.3%
 Estonia[16] 1,228,62429.5%30.8%20.7%6.3%4.3%4.5%3.0%0.9%
 Ethiopia 108,113,15039.0%28.0%21.0%5.0%3.0%2.0%1.0%1.0%
 Fiji 935,97443.0%33.3%16.5%4.8%1.0%0.7%0.5%0.2%
 Finland[17] 5,571,66528.0%35.0%16.0%7.0%5.0%6.0%2.0%1.0%
 France[18] 67,848,15636.0%37.0%9.0%3.0%6.0%7.0%1.0%1.0%
 Germany[19] 80,159,66235.0%37.0%9.0%4.0%6.0%6.0%2.0%1.0%
 Ghana 29,340,24853.8%17.6%18.3%2.8%4.5%1.3%1.3%0.2%
 Greece 10,607,05137.8%32.2%11.0%4.0%6.6%5.7%2.0%0.7%
 Guinea 12,527,44046.88%21.64%22.86%4.52%2.0%0.9%1.0%0.2%
 Honduras 9,235,34057.5%27.0%7.8%2.5%2.7%1.7%0.6%0.2%
 Hong Kong 7,249,90741.5%26.13%25.34%6.35%0.32%0.17%0.14%0.05%
 Hungary 9,771,82727.0%33.0%16.0%8.0%5.0%7.0%3.0%1.0%
 Iceland[20] 350,73446.8%27.2%9.0%2.0%8.2%4.8%1.6%0.4%
 India[21] 1,326,093,24727.85%20.8%38.14%8.93%1.43%0.57%1.79%0.49%
 Indonesia 267,026,36636.82%25.87%28.85%7.96%0.18%0.13%0.15%0.04%
 Iran 84,923,31433.5%27.0%22.2%7.0%4.0%3.0%2.5%0.8%
 Iraq 38,872,65532.1%25.0%25.6%7.4%3.6%2.7%2.7%0.9%
 Ireland[22] 5,176,56947.0%26.0%9.0%2.0%8.0%5.0%2.0%1.0%
 Israel[23] 8,675,47532.0%34.0%17.0%7.0%3.0%4.0%2.0%1.0%
 Italy 62,402,65939.0%36.0%7.5%2.5%7.0%6.0%1.5%0.5%
 Ivory Coast 27,481,08646.5%22.5%22.5%4.3%2.0%1.0%1.0%0.2%
 Jamaica[24] 2,808,57047.0%23.0%20.0%3.0%3.5%2.0%1.0%0.5%
 Japan[25] 125,507,47229.9%39.8%19.9%9.9%0.15%0.2%0.1%0.05%
 Kazakhstan 19,091,94930.7%29.8%24.2%8.3%2.3%2.2%1.8%0.7%
 Kenya 53,527,93645.6%25.2%21.28%4.2%1.8%1.0%0.9%0.02%
 Latvia 1,881,23230.6%31.0%17.0%6.0%5.4%6.0%3.0%1.0%
 Lebanon 5,469,61238.4%32.3%9.5%3.2%7.7%6.5%1.7%0.7%
 Libya 6,890,53542.64%28.86%11.19%4.5%6.26%4.24%1.64%0.67%
 Liechtenstein 39,13734.0%37.0%10.0%4.0%6.0%6.5%1.8%0.7%
 Lithuania 2,731,46436.0%33.0%11.0%4.0%7.0%6.0%2.0%1.0%
 Luxemburg[26] 628,38135.0%37.0%9.0%4.0%6.0%6.0%2.0%1.0%
 Macao 614,45841.5%26.1%25.4%6.3%0.33%0.17%0.15%0.05%
 Malaysia 32,652,08334.32%30.35%27.37%7.46%0.17%0.15%0.14%0.04%
 Malta 457,26738.0%41.0%7.0%3.0%5.0%4.5%1.0%0.5%
 Mauritania 4,005,47546.3%26.68%17.47%3.85%2.8%1.6%1.1%0.2%
 Mauritius 1,379,36538.3%26.0%25.0%6.7%1.7%1.0%1.0%0.3%
 Mexico[27] 128,649,56559.09%26.23%8.53%1.73%2.73%1.21%0.40%0.08%
 Moldova[28] 3,364,49628.5%31.8%17.6%7.0%5.0%6.0%3.0%1.1%
 Mongolia 3,168,02621.1%18.7%31.1%3.7%0.1%0.1%0.1%0.04%
 Morocco 35,561,65442.3%29.8%14.3%4.1%4.5%3.1%1.5%0.4%
 Myanmar 56,590,07135.7%23.8%32.7%6.95%0.3%0.2%0.3%0.05%
   Nepal 30,327,87735.2%28.3%27.1%8.6%0.3%0.2%0.2%0.1%
 Netherlands[29] 17,280,39739.5%35.0%6.7%2.5%7.5%7.0%1.3%0.5%
 New Zealand[30] 4,925,47738.0%32.0%9.0%3.0%9.0%6.0%2.0%1.0%
 Nigeria 214,028,30251.3%22.4%20.7%2.6%1.6%0.7%0.6%0.1%
 North Korea 25,643,46627.15%31.08%30.15%11.32%0.08%0.1%0.1%0.03%
 North Macedonia 2,125,97130.0%34.0%15.0%6.0%5.0%6.0%3.0%1.0%
 Norway[31] 5,467,43933.2%41.6%6.8%3.4%5.8%7.4%1.2%0.6%
 Pakistan 233,500,63626.63%21.6%34.40%9.52%2.17%1.66%3.57%0.45%
 Papua New Guinea 7,259,45648.0%37.2%9.6%2.8%1.0%0.8%0.4%0.2%
 Peru[32] 31,914,98970.0%18.4%7.8%1.6%1.4%0.5%0.28%0.02%
 Philippines[33] 109,180,81545.9%22.9%24.9%5.97%0.1%0.1%0.1%0.03%
 Poland[34] 38,282,32531.0%32.0%15.0%7.0%6.0%6.0%2.0%1.0%
 Portugal[35] 10,302,67436.2%39.8%6.6%2.9%6.1%6.8%1.1%0.5%
 Romania[36] 21,302,89328.0%37.0%14.0%7.0%5.0%6.0%2.0%1.0%
 Russia 141,722,20528.0%30.4%19.7%6.9%4.9%5.4%3.5%1.2%
 Saudi Arabia[37] 34,173,49847.8%23.9%17.0%4.0%4.0%2.0%1.0%0.3%
 Serbia 7,012,16531.92%35.28%12.6%4.2%6.08%6.72%2.4%0.8%
 Singapore[38] 6,209,66044.7%23.9%24.5%5.6%0.6%0.3%0.3%0.1%
 Slovakia[39] 5,440,60227.2%35.7%15.3%6.8%4.8%6.3%2.7%1.2%
 Slovenia 2,102,67831.0%33.0%12.0%6.0%7.0%7.0%3.0%1.0%
 South Africa[40] 56,463,61739.0%32.0%12.0%3.0%6.0%5.0%2.0%1.0%
 South Korea 51,835,11027.9%33.87%26.92%10.98%0.1%0.13%0.08%0.02%
 Spain[41] 50,015,79235.0%36.0%8.0%2.5%9.0%7.0%2.0%0.5%
 Sudan 45,561,55648.0%27.7%15.2%2.8%3.5%1.8%0.8%0.2%
 Sweden[42] 10,202,49132.0%37.0%10.0%5.0%6.0%7.0%2.0%1.0%
  Switzerland[43] 8,403,99435.0%38.0%8.0%4.0%6.0%7.0%1.0%1.0%
 Syria 19,398,44843.0%30.0%14.0%3.7%5.0%3.0%1.0%0.3%
 Taiwan 23,603,04943.9%25.9%23.9%6.0%0.17%0.1%0.01%0.02%
 Thailand 68,977,40040.8%16.9%36.8%4.97%0.2%0.1%0.2%0.03%
 Turkey[44] 82,017,51429.8%37.8%14.2%7.2%3.9%4.7%1.6%0.8%
 Uganda 43,252,96643.7%39.0%10.7%3.9%1.3%1.0%0.3%0.1%
 Ukraine 43,922,93932.0%34.0%15.0%5.0%5.0%6.0%2.0%1.0%
 United Arab Emirates 9,992,08344.1%21.9%20.9%4.3%4.3%2.1%2.0%0.4%
 United Kingdom 65,761,11738.0%32.0%8.0%3.0%9.0%7.0%2.0%1.0%
 United States[45] 332,639,10237.4%35.7%8.5%3.4%6.6%6.3%1.5%0.6%
 Venezuela[46] 28,644,60358.3%28.2%5.6%1.9%3.7%1.8%0.4%0.1%
 Vietnam 98,721,27541.7%21.9%30.8%4.98%0.3%0.1%0.2%0.02%
 Yemen 29,884,40547.84%27.5%15.32%2.14%3.66%2.1%1.17%0.16%
 Zimbabwe 14,546,31463.3%18.5%14.6%0.99%1.7%0.5%0.4%0.01%
World 7,684,292,38338.67%27.42%22.02%5.88%2.55%1.99%1.11%0.36%

  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[47]
(This table has more entries than the table above but does not distinguish between Rh types.)
People group O (%) A (%) B (%) AB (%)
Aboriginal people 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 42 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 42 14 5
Romani people (Hungary) 29 27 35 10
Hawaiians 37 61 2 1
Hindus (Bombay) 29 25 35 11
Hungarians 36 43 16 5
Icelanders 56 32 10 3
Indians (India) 29 21 40 9
Native Americans 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) 33 41 18 8
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 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
Somalis[48] 50.1 29.6 15.2 5.1
South Africans 45 40 11 4
Spanish 38 47 10 5
Sudanese 62 16 21 0
Swedish 38 47 10 5
Swiss 40 50 7 3
Tatars 28 30 29 13
Thais 37 22 33 8
Turks 43 34 18 6
Ukrainians 37 40 18 6
Black Americans 49 27 20 4
White Americans 45 40 11 4
Vietnamese 42 22 30 5

Blood group B has its highest frequency in South Asia, where it ranks first as the largest share of the earth's population. In Southeast Asia the share of the population is high, especially in Thailand and 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.[49][50] It is believed to have been entirely absent from Native American and Australian Aboriginal populations prior to the arrival of Europeans in those areas.[50][51]

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, USA.[52][53]

Maps of allele ABO among native populations

In the ABO blood group system, there are three alleles: i, IA, and IB. As both IA and IB are dominant over i, only ii people have type O blood. Individuals with IAIA or IAi have type A blood, and individuals with IBIB or IBi have type B. Those with IAIB have type AB.

  • Map of allele IA
    among native populations
  • Map of allele IB
    among native populations
  • Map of allele i
    among native populations

See also

References
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  47. "Racial and ethnic distribution of ABO blood types". Bloodbook.com. Archived from the original on 4 March 2010. Retrieved 1 August 2010.
  48. Ismail 2019, Table 1: Frequency of ABO blood types and Rhesus factor from 2015 to 2017, Somali Region, Ethiopia
  49. Blood Transfusion Division, United States Army Medical Research Laboratory (1971). Selected contributions to the literature of blood groups and immunology. 1971 v. 4. United States Army Medical Research Laboratory, Fort Knox, Kentucky. ... In northern India, in Southern and Central China and in the neighboring Central Asiatic areas, we find the highest known frequencies of B. If we leave this center, the frequency of the B gene decreases almost everywhere ...
  50. 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 ...
  51. 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 ...
  52. Dean 2005, 2.1.4: 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 ...
  53. 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% ...
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