The population of Kiribati in 2003 was estimated by the United Nations at 96,000, which placed it as number 179 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 42% of the population under 15 years of age. There were 99 males for every 100 females in the country in 2003. According to the UN, the annual population growth rate for 2000–2005 is 1.41%, with the projected population for the year 2015 at 102,000. The population density in 2002 was 130 per sq km (337 per sq mi). The population is unevenly distributed; some islands of the Phoenix and Line groups are uninhabited.
It was estimated by the Population Reference Bureau that 39% of the population lived in urban areas in 2001. The capital city, Tarawa, had a population of 32,000 in that year. According to the United Nations, the urban population growth rate for 2000– 2005 was 2.6%.