US African American Population by County (1990–2018)
According to U.S. Census Bureau data, African Americans make up 14.6% (47.8 million) of the U.S. population.
In recent decades, there has been an increase in U.S. counties with a predominance of blacks.
However, the growth in the number of black-majority U.S. counties isn’t because the United States is shifting considerably blacker (the share of Afro-Americans in the U.S. has only grown by 1.5% since 1970), but because of changes between and within regions and metropolitan areas. This growth is proceeding amid a national conversation about the U.S. becoming minority white in about 2050, a prediction due in massive part to the growing amounts of Hispanics and newcomers in national population totals.