- + Key points: Population
• The estimated residential population of NSW in 2014 was 7,518,472 which was just under one-third of Australia's population. The population of NSW in 2031 is projected to be approximately 9,228,362.
• The NSW population continues to age. The median age, or the age for which half the population are older and half are younger, was 37.9 years in NSW in 2014.
• In 2014 the female population slightly outnumbered the male population (98.6 males per 100 females) and this gap is predicted to remain similar in 2031 (98.4 males per 100 females).
• The proportion of females in the population increases with age. In 2014 females made up 50.4% of the total population but 53.6% of the NSW population aged 65 years or more, and 64% of the population aged 85 years or more.
• The NSW population is predominantly urban. In 2014 approximately 74% of the NSW population lived in major cities, 19% lived in inner regional areas, and 7% in outer regional and remote areas.
- + Background: Population
Demography is the study of populations, especially with reference to size and density, fertility, mortality, growth, age and sex distribution, migration and vital statistics and the interaction of all these with social and economic conditions (Last 2001).
Age and sex as determinants of health
Age and sex are important determinants of the health of individuals. Thus, the age and sex structure of a population has a strong effect on patterns of illness and use of health services.
The age and sex structure will vary among different regions, for reasons such as young adults moving to cities for study or work and older people retiring to coastal areas.
Population of Australia and NSW
In 2012 the estimated resident population of Australia was 22.7 million. A third of the Australian population lives in NSW, with just over one fifth in Greater Sydney. Aboriginal and Torres Strait Islander people accounted for 2.9% of the population in NSW in 2012.
Last JM (ed). A dictionary of epidemiology. Fourth edition. New York: Oxford University Press. Inc, 2001.
NSW Department of Planning and Environment. Demography. http://www.planning.nsw.gov.au/Research-and-Demography/Demography