The population of Singapore in 2003 was estimated by the United Nations at 4,253,000, which placed it as number 117 in population among the 193 nations of the world. In that year approximately 7% of the population was over 65 years of age, with another 21% of the population under 15 years of age. There were 101 males for every 100 females in the country in 2003. According to the UN, the annual population growth rate for 2000–2005 is 1.69%, with the projected population for the year 2015 at 4,707,000. The population density in 2002 was 6,852 per sq km (17,746 per sq mi).
Singapore is virtually a city-state, and the entire population (100%) is considered urban. The capital city, Singapore, and the surrounding area, had a population of 3,522,000 in 2002. According to the United Nations, the urban population growth rate for 2000–2005 was 1.0%.