The population of Angola in 2003 was estimated by the United Nations at 13,625,000, which placed it as number 63 in population among the 193 nations of the world. In that year approximately 3% of the population was over 65 years of age, with another 48% of the population under 15 years of age. There were 97 males for every 100 females in the country in 2003. According to the UN, the annual population growth rate for 2000–2005 is 3.20%, with the projected population for the year 2015 at 19,268,000. The population density in 2002 was 10 per sq km (26 per sq mi).
It was estimated by the Population Reference Bureau that 34% of the population lived in urban areas in 2001. The capital city, Luanda, is also the largest with a population of 2,555,000 in 2002. Other principal cities are Huambo (about 400,000), Benguela, Lobito, Cabinda, Malanje, and Lubango. According to the United Nations, the urban population growth rate for 2000– 2005 was 4.9%.
The prevalence of AIDS/HIV has had a significant impact on the population of Angola. The United Nations estimated that5.5% of adults between the ages of 15–49 were living with HIV/AIDS in 2001. In addition, years of civil conflict have had significant impact on the populace, including the creation of one million internally displaced persons and refugees. Life expectancy in Angola is an average of 41 years.