What number do black people in America outnumber white people by?

Answer 1

It depends on how the question is to be read.

In the United States, there are between 39-42 million African-Americans, depending on whether you count biracial persons where one parent is Black. This number also does not count Hispanics with dark skin, like Dominicans, who do have African ancestry.

In the entire pair of American continents, there are roughly 180 million people of whole or partial African descent.

Answer 2

They don't. Only 12% of the USA's population are considered as black.