Nearly 40% of Denmark, Norway, Austria, and Ukraine have this blood type. Countries like Ghana, Libya, Congo and Egypt, have more individuals with O- blood types than AB+. O+ is a strong blood group classification among African countries. Here is a breakdown of the most common blood types in the U.S.
It is also the most common blood type in Canada and the United States. The O blood type is the most common globally and is carried by nearly 70% of South Americans. Nearly 20% of China’s population has this blood type, and it is also fairly common in India and other Central Asian countries.Ĭomparatively, in some West Asian countries like Armenia and Azerbaijan, the population with blood type A+ outweighs any others. Regional Distribution of Blood Types AsiaĮven though O+ remains the most common blood type here, blood type B is relatively common too. Since different genetic factors play a part in determining an individual’s blood type, every country and region tells a different story about its people. The rarest, meanwhile, is AB-, with only 0.40% of the population having this particular blood type.īreaking it down to the national level, these statistics begin to change. Of the 7.9 billion people living in the world, spread across 195 countries and 7 continents, the most common blood type is O+, with over 39% of the world’s population falling under this classification. Using data sourced from Wikipedia, we can map the most widespread blood types across the globe. The antigens in one’s blood determine their blood type classification: There are eight common blood type groups, and with different combinations of antigens and classifications, 36 human blood type groups in total. It dispenses crucial nutrients throughout the body, exchanges oxygen and carbon dioxide, and carries our immune system’s “militia” of white blood cells and antibodies to stave off infections.īut not all blood is the same.
The Most Widespread Blood Types, by Countryīlood is essential to the human body’s functioning.