The population of Cuba in 2003 was estimated by the United Nations at 11,300,000, which placed it as number 71 in population among the 193 nations of the world. In that year approximately 10% of the population was over 65 years of age, with another 21% of the population under 15 years of age. There were 100 males for every 100 females in the country in 2003. According to the UN, the annual population growth rate for 2000–2005 is 0.27%, with the projected population for the year 2015 at 11,525,000. The population density in 2002 was 102 per sq km (265 per sq mi).
It was estimated by the Population Reference Bureau that 75% of the population lived in urban areas in 2001. The capital city, Havana, had a population of 2,242,000 in that year, which accounts for about 20% of the total population. To inhibit further growth, the government has put restrictions on migration to Havana. Other important cities are Santiago de Cuba (405,354), Camagüey (283,008), Holguín (228,053), Santa Clara (194,354), and Guantánamo (200,381). According to the United Nations, the urban population growth rate for 2000–2005 was 0.5%.