The population of Burkina Faso in 2003 was estimated by the United Nations at 13,002,000, which placed it as number 66 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 49% of the population under 15 years of age. There were 96 males for every 100 females in the country in 2003. According to the UN, the annual population growth rate for 2000–2005 is 2.95%, with the projected population for the year 2015 at 18,562,000. The population density in 2002 was 46 per sq km (119 per sq mi). Most people live in the south and center of the country.
It was estimated by the Population Reference Bureau that 19% of the population lived in urban areas in 2001. The capital city, Ouagadougou, had a population of 1,062,000 in that year. The only other big city is Bobo-Dioulasso. According to the United Nations, the urban population growth rate for 2000–2005 was5.6%.
The prevalence of AIDS/HIV has had a significant impact on the population of Burkina Faso. The United Nations estimated that 6.4% of adults between the ages of 15–49 were living with HIV/AIDS in 2001. The AIDS epidemic causes higher death and infant mortality rates, and lowers life expectancy.