At the turn of the 21st century, more than half the country’s more than 36 million African Americans lived in the South; 10 Southern states had black populations exceeding 1 million. African Americans were also concentrated in the largest cities, with more than 2 million living in New York City and more than 1 million in Chicago. Detroit, Philadelphia, and Houston each had a black population between 500,000 and 1 million.