The population of Serbia and Montenegro in 2003 was estimated by the United Nations at 10,527,000, which placed it as number 74 in population among the 193 nations of the world. Approximately 10 million resided in Serbia, with the remainder in Montenegro. In 2003 an estimated 14% of the population was over 65 years of age, with another 20% 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 -0.08%, with the projected population for the year 2015 at 10,445,000. The population density in 2002 was 104 per sq km (270 per sq mi).
It was estimated by the Population Reference Bureau that 52% of the population lived in urban areas in 2001. The capital city, Belgrade, had a population of 1,482,000 in that year. Other large cities include Novi Sad, 179,626; Nis, 175,391; and Pristina, 155,499. According to the United Nations, the urban population growth rate for 2000–2005 was 0.6%.