[marketheal]

Of the white Americans I share with on 23andme, very few have mixture. But it's true, if you compare white Americans and white Canadians, Americans are more mixed. Pretty much every white Canadian I share with is 99 to 100% European (these are mostly French-Canadians, I don't have many English ones on my share), whereas I've seen white Americans with 90% European ancestry on 23andme.

From my observation, colonials from most mixed to least:

Latin Americans
Americans (USA)
White South AfricansCanadians
Australians

I read from various studies that the average White South African is 7% non European.

Here's one study on White Americans from State College PA., with an average of 96% Euro, 3% Amerindian, and 0.9% African



And another study that states that on average European-Americans are: 93% European (73% to 98% European) and about 6% Native American/Asian and 3% African

http://onlinelibrary.wiley.com/doi/1...21366/abstract