Population of Left Handed People

A variety of studies suggest that 15% of the world population is left-handed.

  • About 20 percent of people with schizophrenia dominantly use their left hands.
  • Studies indicate that left-handedness is more common in males than females.
  • Left-handedness, in comparison to the general population, also appears to occur more frequently in identical twins.
  • Statistically, the identical twin of a left-handed person has a 76% chance of being left-handed, identifying the cause(s) as partly genetic and partly environmental.
  • In America, 12% of 20 year olds are left-handed, while only 5% of 50 year olds and less than 1% of people over 80 are.
  • South Asian, Eastern European, Southeast Asian descent are more left-handed than any other ethnic groups in the world, while people of Western European, Northern European, and African descent are less left-handed

Here is a great infographic about left-handed facts and statistics:


  • Left-handers are more likely to be geniuses. 20% of all MENSA members report being left-handed.
  • A study found left-handed men are, on average, 15% richer than right-handed men for those who attend college, and 26% richer if they graduate.
  • Left handed people are three times more likely than right-handed people to become alcoholics
  • If both parents are left-handers, 50% of their offspring will be left-handed. Two righties only have a 2% chance of having a lefty.
  • Psychologists from Queen;s University Belfast found that female cats are more likely to be right pawed, while male cats tend to be left-pawed.
  • Lefties are more likely than righties to really, really hate spiral notebooks.
  • Research conducted by Dr. Nich Cherbuin shows that lefties are better at handling large amounts of stimuli, making them naturally better at playing video games.
  • Statisitically, the older a mother is, the more likely she is to give birth to a left-handed children.
  • Left-handers are believed to reach puberty 4 to 5 months after right-handers.
  • Living in a righty’s world: only 50% of lefties report using a computer mouse with their left hands.¬†Similarly¬† 68% use their right hand for scissors and 74% hold a dinner knife in their right hand.
  • Defying the odds: 4 of the 5 original designers of the Mac computer were left handed. Of the last 5 presidents, 3 are left-handed (Obama, Clinton, Bush Sr.)
  • According to one study, lefties have an average lifespan that is nine years fewer than that of righties.

Population of Left Handed People – Lefty Shoppe