Answer :
Ohio, Texas, California, North Carolina, Georgia, and New York. Even the black rate is the same rate as of today.
In 1990, the following six States in had an African-American population of more than 1.5 million:
New York
Ohio
Texas
California
North Carolina
Georgia
Today, the numbers are significantly higher. As of latest census North Carolina has more than 2 million African-Americans, while has 2.9 million.
However, states such as Texas and California now have a far higher percentage of Hispanics than African Americans.
Apart from this, in terms of the percentage of the total population, the district of Columbia has the highest percentage of African-Americans anywhere in the country. In fact, Washington DC's population is 50.7% African-American.
This is followed by Mississippi where 37% of the population is African-American.