brazil's largest african and mixed populations are in
Demographics of Brazil In the Northeast, which received large masses of African slaves to work in sugarcane, tobacco and cotton plantations, people of African and mixed-race descent predominate, mostly on the coast, whereas in the semi-arid country land (usually called sertão) there is a predominance of white and Amerindian-European mixed people. Most of the black or mulatto people in the sertão are descended from freed African slaves or mulattos who fled inland from the coast and worked as cowboys for semi-feudal lords. The city of Salvador da Bahia is considered one of the largest black cities of the world. In the Northwest (covering largely the Brazilian Amazon), a great part of the population has distinguishable ethnic characteristics that emphasize their Amerindian roots. Other ethnic groups have merged with the Indigenous tribes there. This region is not densely populated, and "caboclos", people of mixed native and European descent, are a small part of the entire Brazilian population.