The population of Liechtenstein in 2003 was estimated by the United Nations at 33,000, which placed it as number 187 in population among the 193 nations of the world. In that year approximately 11% of the population was over 65 years of age, with another 19% of the population under 15 years of age. There were 95 males for every 100 females in the country in 2003. According to the UN, the annual population growth rate for 2000–2005 is 0.85%, with the projected population for the year 2015 at 36,000. The population density in 2002 was 212 per sq km (550 per sq mi).
The population is most heavily concentrated in the Rhine Valley, in which the two largest communities, Vaduz and Schaan, are located. It was estimated by the Population Reference Bureau that 23% of the population lived in urban areas in 2001. The capital city, Vaduz, had a population of 7,000 in that year. According to the United Nations, the urban population growth rate for 2000–2005 was 3.6%.