The population of Portugal in 2003 was estimated by the United Nations at 10,062,000, which placed it as number 78 in population among the 193 nations of the world. In that year approximately 16% of the population was over 65 years of age, with another 16% of the population under 15 years of age. There were 93 males for every 100 females in the country in 2003. According to the UN, the annual population growth rate for 2000–2005 is 0.13%, with the projected population for the year 2015 at 10,030,000. The population density in 2002 was 114 per sq km (294 per sq mi). Approximately two-thirds of the population lives in coastal areas.
It was estimated by the Population Reference Bureau that 38% of the population lived in urban areas in 2001. The capital city, Lisbon, had a population of 3,754,000 in that year. Oporto, the next largest city, had a metropolitan population of 1,179,510. These two metropolitan areas account for most of the urban dwellers in the country. According to the United Nations, the urban population growth rate for 2000–2005 was 1.7%.