This list concerns blood type distribution between countries and regions. Blood type (also called a blood group) is a classification of genes, 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 PopulationCIA World Factbookhttps://www.worldometers.info/world-population/population-by-country/ Population by country] O+ A+ B+ AB+ O− A− B− AB− 3,107,100 34.1% 31.2% 14.5% 5.2% 6.0% 5.5% 2.6% 0.9% 47,022,473 40.0% 30.0% 15.0% 4.25% 6.6% 2.3%1.1% 0.75% 46,994,384 50.34% 31.09% 8.20% 2.16% 4.29% 2.98%0.74% 0.20% 2,976,765 29.0% 46.3% 12.0% 5.6% 2.0% 3.7% 1.0% 0.4% 26,768,598 38.0% 32.0% 12.0% 4.0% 7.0% 6.0% 2.0% 1.0% 8,967,982 30.0% 37.0% 12.0% 5.0% 6.0% 7.0% 2.0% 0.45% 10,650,239 29.8% 30.0% 21.1% 9.0% 3.3% 3.4% 2.4% 1.0% 1,566,888 48.48% 15.35% 22.61% 3.67% 3.27% 1.33% 1.04% 0.25% 168,697,184 29.21% 26.3% 33.12% 9.59% 0.53% 0.48% 0.6% 0.17% 9,501,451 32.3% 30.6% 15.3% 6.8% 5.7% 5.4% 2.7% 1.2% 11,977,634 38.0% 34.0% 8.5% 4.0% 7.0% 6.0% 1.5% 1.0% 884,546 38.15% 29.45% 23.86% 8.41% 0.06% 0.04% 0.04% 0.01% 12,311,974 51.53% 20.45% 10.11% 1.15% 4.39% 2.73% 0.54% 0.1% 3,798,671 31.0% 36.0% 12.0% 6.0% 5.0% 7.0% 2.0% 1.0% Tipos Sanguíneos 220,051,512 36.0% 34.0% 8.0% 2.5% 9.0% 8.0% 2.0% 0.5% 6,782,659 28.0% 37.4% 12.8% 6.8% 5.0% 6.6% 2.2% 1.2% 23,042,199 39.94% 20.79% 26.34% 5.17% 3.36% 1.75% 2.22% 0.43% 17,063,669 46.7% 27.2% 18.5% 4.9% 1.3% 0.8% 0.5% 0.1% 30,966,105 46.83% 24.15% 21.06% 4.29% 1.79% 0.92% 0.8% 0.16% 38,794,813 39.0% 36.0% 7.6% 2.5% 7.0% 6.0% 1.4% 0.5% 18,664,652 55.01% 28.08% 8.02% 1.81% 4.19% 2.14% 0.61% 0.14% 49,588,357 61.3% 21.11% 7.28% 1.47% 5.13% 2.7% 0.7% 0.31% 5,265,575 49.7% 28.5% 12.4% 3.0% 3.4% 1.9% 0.9% 0.2% 4,150,116 29.0% 36.0% 15.0% 5.0% 5.0% 6.0% 3.0% 1.0% 10,966,038 45.8% 33.5% 10.2% 2.9% 3.6% 2.8% 1.0% 0.2% - ΚENTΡΟ ΑΙΜΑΤΟΣ 1,320,525 35.22% 40.35% 11.11% 4.72% 3.85% 3.48% 0.87% 0.40% 10,837,890 27.0% 36.0% 15.0% 7.0% 5.0% 6.0% 3.0% 1.0% 115,403,027 59.5% 21.3% 15.2% 2.4% 1.0% 0.3% 0.2% 0.1% Frequency of major blood groups in the Danish population. 5,973,136 35.0% 37.0% 8.0% 4.0% 6.0% 7.0% 2.0% 1.0% 10,815,857 47.2% 26.4% 16.9% 2.1% 3.7% 2.1% 1.4% 0.2% 18,309,984 75.0% 14.0% 7.1% 0.5% 2.38% 0.7% 0.3% 0.02% 111,247,248 36.44% 33.94% 20.96% 8.65% n/a n/a n/a n/a 6,628,702 62.0% 23.0% 11.0% 1.0% 1.0% 1.0% 0.7% 0.3% 1,344,232 29.5% 30.8% 20.7% 6.3% 4.3% 4.5% 3.0% 0.9% 118,550,298 39.0% 28.0% 21.0% 5.0% 3.0% 2.0% 1.0% 1.0% 951,611 43.0% 33.3% 16.5% 4.8% 1.0% 0.7% 0.5% 0.2% 5,626,414 28.0% 35.0% 16.0% 7.0% 5.0% 6.0% 2.0% 1.0% 68,374,591 36.5% 38.2% 7.7% 2.5%6.5% 6.8% 1.4% 0.4% 2,455,105 57.55% 20.52% 17.19% 2.54% 1.35% 0.48% 0.41% 0.06% 4,900,961 34.8% 32.3% 11.9% 6.0% 6.2% 5.7% 2.1% 0.5% 84,119,100 35.0% 37.0% 9.0% 4.0% 6.0% 6.0% 2.0% 1.0% 34,589,092 53.8% 17.6% 18.3% 2.8% 4.5% 1.3% 1.3% 0.2% 10,461,091 37.8% 32.2% 11.0% 4.0% 6.6% 5.7% 2.0% 0.7% 13,986,179 46.88% 21.64% 22.86% 4.52% 2.0% 0.9% 1.0% 0.2% 9,529,188 57.5% 25.0% 7.8% 2.5% 2.7% 1.7% 0.6% 0.2% 7,297,821 42.8% 25.5% 25.8% 5.9% 0.7% 0.1% 0.2% 0.1% 9,855,745 27.0% 33.0% 16.0% 8.0% 5.0% 7.0% 3.0% 1.0% 364,036 47.6% 27.2% 9.0% 2.0% 8.4% 4.8% 1.6% 0.4% 1,409,128,296 32.53% 21.80% 32.10% 7.70% 2.03% 1.36% 2.00% 0.48% 281,562,465 36.82% 25.87% 28.85% 7.96% 0.18% 0.13% 0.15% 0.04% 88,386,937 36.5% 27.0% 22.2% 4.0% 5.0% 2.0% 2.5% 0.8% 42,083,436 32.1% 25.0% 25.6% 7.4% 3.6% 2.7% 2.7% 0.9% 5,233,461 47.0% 26.0% 9.0% 2.0% 8.0% 5.0% 2.0% 1.0% 9,402,617 32.0% 34.0% 17.0% 7.0% 3.0% 4.0% 2.0% 1.0% 60,964,931 39.0% 36.0% 7.5% 2.5% 7.0% 6.0% 1.5% 0.5% 29,981,758 47.24% 20.19% 21.7% 3.82% 3.73% 1.54% 1.48% 0.3% 2,823,713 51.1% 20.0% 20.0% 1.9% 3.5% 2.0% 1.0% 0.5% 123,201,945 29.9% 39.8% 19.9% 9.9% 0.15% 0.2% 0.1% 0.05% 11,174,024 33.03% 32.86% 16.56% 6.28% 4.4% 3.97% 2.06% 0.04% 20,260,006 30.7% 29.8% 24.2% 8.3% 2.3% 2.2% 1.8% 0.4% 58,246,378 45.6% 25.2% 21.28% 4.2% 1.8% 1.0% 0.9% 0.02% 7,953,556 37.52% 19.73% 35.36% 6.85% 0.2% 0.1% 0.2% 0.05% 1,853,559 30.6% 31.0% 17.0% 6.0% 5.4% 6.0% 3.0% 1.0% 5,364,482 38.4% 32.3% 9.5% 3.2% 7.7% 6.5% 1.7% 0.7% 7,361,263 42.64% 20.86% 11.19% 4.5% 7.26% 3.24% 1.64% 0.67% 40,272 34.0% 37.0% 10.0% 4.0% 6.0% 6.5% 1.8% 0.7% 2,830,144 36.0% 33.0% 11.0% 4.0% 7.0% 6.0% 2.0% 0.7% 671,254 35.0% 37.0% 9.0% 4.0% 6.0% 6.0% 2.0% 1.0% 644,426 41.5% 26.1% 25.4% 6.3% 0.33% 0.09% 0.17% 0.05% 34,564,810 34.32% 30.35% 27.37% 7.46% 0.17% 0.15% 0.14% 0.04% 469,730 38.0% 41.0% 7.0% 3.0% 5.0% 4.5% 1.0% 0.5% 4,328,040 46.3% 26.68% 17.47% 3.85% 2.8% 1.6% 1.1% 0.2% 1,310,504 38.3% 26.0% 25.0% 6.7% 1.7% 1.0% 1.0% 0.3% 130,739,927 59.09% 26.23% 8.53% 1.73% 2.73% 1.21% 0.40% 0.08% 3,599,528 28.5% 31.8% 17.6% 7.0% 5.0% 6.0% 3.0% 1.1% 3,281,676 37.66% 22.89% 29.93% 7.83% 0.34% 0.21% 0.27% 0.01% 37,387,585 42.3% 30.8% 14.0% 4.0% 4.5% 3.1% 1.5% 0.4% 57,527,139 35.7% 23.8% 32.7% 6.95% 0.3% 0.2% 0.3% 0.05% 2,803,660 50.58% 20.49% 20.21% 1.02% 4.22% 1.71% 1.69% 0.08% 31,122,387 35.2% 36.3% 27.1% 2.6% 0.3% 0.2% 0.2% 0.1% 17,772,378 38.2% 36.6% 7.7% 2.5% 6.8% 6.4% 1.3% 0.5% 5,161,211 38.0% 32.0% 10.0% 3.0% 9.0% 6.0% 1.0% <1.0% 6,676,948 62.0% 20.0% 11.0% 4.0% 1.0% 1.0% 0.7% 0.3% 236,747,130 50.23% 21.61% 19.59% 3.47% 2.7% 1.16% 1.05% 0.19% 26,298,666 27.15% 31.08% 30.15% 11.32% 0.08% 0.1% 0.1% 0.03% 2,135,622 30.0% 34.0% 15.0% 6.0% 5.0% 6.0% 3.0% 1.0% 5,509,733 33.2% 41.6% 6.8% 3.4% 5.8% 7.4% 1.2% 0.6% 3,901,992 44.9% 17.4% 20.2% 6.8% 7.4% 0.6% 2.7% n/a 252,363,571 30.04% 21.53% 30.24% 8.83% 3.1% 2.22% 3.13% 0.91% 10,046,233 55.7% 32.2% 9.6% 2.1% 1.8% 0.5% 0.2% 0.1% 7,522,549 63.07% 21.32% 4.72% 1.38% 5.89% 2.97% 0.49% 0.15% 32,600,249 70.0% 18.4% 7.8% 1.6% 1.4% 0.5% 0.28% 0.02% 118,277,063 45.9% 22.9% 24.9% 5.97% 0.1% 0.1% 0.1% 0.03% 38,140,910 31.0% 32.0% 15.0% 7.0% 6.0% 6.0% 2.0% 1.0% (assuming Rh and AB antigens are independent) 10,207,177 36.2% 39.8% 6.6% 2.9% 6.1% 6.8% 1.1% 0.5% 1,416,043,270 34.0% 27.6% 28.9% 8.4% 0.4% 0.25% 0.2% 0.15% 18,148,155 28.0% 37.0% 14.0% 7.0% 5.0% 6.0% 2.0% 1.0% 140,820,810 36.0% 31.0% 19.0% 2.1% 6.0% 4.0% 1.0% 0.9% 36,544,431 47.8% 16.0% 17.9% 4.0% 4.0% 2.0% 1.0% 0.3% 6,652,212 31.92% 35.28% 12.6% 4.2% 6.08% 6.72% 2.4% 0.8% 6,028,459 44.7% 23.9% 24.5% 5.6% 0.6% 0.3% 0.3% 0.1% 5,563,649 27.2% 35.7% 15.3% 6.8% 4.8% 6.3% 2.7% 1.2% 2,097,893 31.0% 33.0% 12.0% 6.0% 7.0% 7.0% 3.0% 1.0% 13,017,273 52.8% 19.36% 12.32% 3.52% 7.2% 2.64% 1.68% 0.48% 60,442,647 39.0% 32.0% 12.0% 3.0% 6.0% 5.0% 2.0% 1.0% 52,081,799 27.4% 34.0% 26.7% 11.5% 0.1% 0.1% 0.1% 0.00% 47,280,433 35.0% 36.0% 8.0% 2.5% 9.0% 7.0% 2.0% 0.5% 21,982,608 43.42% 21.0% 25.78% 5.13% 2.12% 1.04% 1.25% 0.26% 50,467,278 48.0% 27.7% 15.2% 2.3% 3.5% 1.8% 0.8% 0.2% 10,589,835 32.0% 37.0% 10.0% 5.0% 6.0% 7.0% 2.0% 1.0% 8,860,574 35.0% 38.0% 8.0% 4.0% 6.0% 7.0% 1.0% 1.0% 23,865,423 43.0% 30.0% 14.0% 3.7% 5.0% 3.0% 1.0% 0.3% 23,595,274 43.9% 25.9% 23.9% 6.0% 0.28% 0.01% 0.01% 0.01% 69,920,998 40.8% 16.9% 36.8% 4.97% 0.2% 0.1% 0.2% 0.03% 12,048,847 41.86% 28.21% 16.38% 4.55% 4.14% 2.79% 1.62% 0.45% 84,119,531 29.4% 38.3% 13.2% 6.4% 4.4% 5.5% 2.1% 0.7% 49,283,041 49.29% 24.11% 20.29% 4.41% 1.01% 0.49% 0.41% 0.09% 35,661,826 32.0% 34.0% 15.0% 5.0% 5.0% 6.0% 2.0% 1.0% 10,032,213 44.1% 21.9% 20.9% 4.3% 4.3% 2.1% 2.0% 0.4% 68,459,055 36%30% 8% 2% 8%9% 2% 1% 341,963,408 37.4% 35.7% 8.5% 3.4% 6.6% 6.3% 1.5% 0.6% 36,520,593 29.42% 30.93% 24.98% 9.27% 1.68% 1.77% 1.42% 0.53% 31,250,306 58.3% 28.2% 5.6% 1.9% 4.0% 1.5% 0.4% 0.1% 105,758,975 41.7% 20.9% 30.8% 4.98% 0.3% 0.1% 0.2% 0.02% 32,140,443 47.84% 27.5% 15.32% 2.14% 3.66% 2.1% 1.17% 0.16% 17,150,352 45.7% 28.8% 18.0% 4.1% 1.7% 1.0% 0.4% 0.3% WorldBlood type distribution 8,057,236,243 38.4% 27.3% 8.1% 2.0% 13.1% 8.1% 2.0% 0.01%

Ethnic distribution of ABO (without Rh) blood types People group O (%) A (%) B (%) AB (%) Australian Aboriginals 39 0 0 Abyssinians 43 27 25 5 Ainu (Japan) 17 32 32 18 Albanians 38 43 13 6 Great Andamanese 9 20 12 Arabs 34 31 29 6 Armenians 31 13 6 Asian Americans 40 28 27 5 Austrians 36 44 13 6 Bantus 46 30 19 5 Basques 44 4 1 Belgians 47 42 8 3 Bororo (Brazil) 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 34 9 2 Chinese-Canton 47 23 25 4 Chinese-Ningbo 35 32 25 9 Chinese-Yangzhou 31 32 27 7 Chinese-Peking 29 27 32 13 Chuvash 30 29 33 7 Croats 34 42 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) 36 23 5 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 44 38 14 5 Romani people (Hungary) 29 27 35 10 Hawaiians 37 2 1 Hindus (Bombay) 32 29 28 11 Hungarians 36 43 19 8 Icelanders 32 10 3 Indians (India) 37 22 33 7 Native Americans (US) 16 4 1 Irish 35 10 1 Italians (Milan) 46 41 11 3 Japanese 30 38 22 10 Jews (Germany) 42 41 12 5 Jews (Poland) 33 41 18 8 Kalmyks 26 23 41 11 Kikuyu (Kenya) 19 20 1 Koreans 28 32 31 9Kurds 37 32 23 6 Sami people 29 4 4 Latvians 32 37 24 7 Lithuanians 40 34 20 6 Malays 18 20 0 Māori 46 1 0 Mayans 1 1 1 Moros 16 20 0 Navajo Indians 27 0 0 Nicobarese 9 15 1 Norwegians 39 8 4 Papuans (New Guinea) 41 27 23 9 Persians 38 33 22 7 Peruvian Indians 0 0 0 Filipinos 45 22 27 6 Poles 33 39 20 9 Portuguese 35 8 4 Romanians 33 43 16 8 Russians 33 36 23 8 Sardinians 26 19 5 Scots 34 12 3 Serbs 38 42 16 5 Shompen Nicobarese 0 0 0 Slovaks 37 42 16 5 South Africans 45 40 11 4 Spanish 38 47 10 5 Sudanese 16 21 0 Swedish 36 45 12 7 Swiss 38 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. It is believed to have been entirely absent from Native American and Australian Aboriginal populations prior to the arrival of Europeans in those areas.

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.

Maps of ABO alleles 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.

See also ABO blood group system Blood type

References 83. "ABO and rhesus blood group distribution in Kurds".