Although Haiti averages approximately 255 people per square kilometer (650 per sq. mi.), its population is concentrated most heavily in urban areas, coastal plains, and valleys. The nation is multi-ethnic, home to peoples of different races and ethnic groups. 95% of Haitians are of predominantly African descent. The remaining 5% of the population is primarily mulattoes, Europeans, Asians and Arabs. Hispanic residents in Haiti are mostly Cuban and Dominican. About two thirds of the Haitian population live in rural areas.