The average Hong Kong resident has one-quarter the floor space of an Australian or American. This is because of the city’s high population density, which has been expanding since the 1950s. Hong Kong had a population density of 6,700 people per square kilometre in 1950. It had risen to 7,300 individuals per square km by 2015. Because of the increase in population density, the average amount of floor area per person has decreased. The average Hong Kong resident had 9.5 square metres of floor space in 1950. This has dropped to 7.5 square metres by 2015.A number of reasons contribute to Hong Kong’s high population density. For starters, the city is situated on a narrow plot of ground with restricted space. Second, Hong Kong has a large number of immigrants who come to live and work there. Third, the city attracts a large number of tourists each year.Despite its dense population, Hong Kong remains a fairly livable city. This is because the city has an effective public transport infrastructure as well as a diverse selection of housing possibilities.