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Shire of Serpentine JarrahdalePopulation forecast

Shire of Serpentine Jarrahdale

Births and deaths

In 2017, Serpentine area is estimated to have the highest fertility rate of 2.59 (births per woman), this is expected to decrease to 2.49 in 2036.

The number of births in the Shire of Serpentine Jarrahdale are derived by multiplying age specific fertility rates of women aged 15-49 by the female population in these age groups for all years during the forecast period.

Birth rates are especially influential in determining the number of children in an area, with most inner urban areas having relatively low birth rates, compared to outer suburban or rural and regional areas. Birth rates have been changing, with a greater share of women bearing children at older ages or not at all, with overall increases in fertility rates. This can have a large impact on the future population profile.

Forecast fertility rates (births per woman)
Shire of Serpentine JarrahdaleYearChange between 2017 and 2036
Shire of Serpentine-Jarrahdale1.911.97+0.06
Byford area1.831.830
Cardup area2.462.41-0.06
Darling Downs area2.402.37-0.03
Hopeland - Keysbrook area1.191.81+0.62
Jarrahdale area1.451.37-0.08
Mundijong area2.182.180
Oakford - Oldbury area2.022.55+0.53
Serpentine area2.592.49-0.10
Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, November 2017.

Death rates

The forecast number of deaths in the Shire of Serpentine Jarrahdale is a reflection of death rates assumed for small areas. For historical years, this will equal the number of deaths published by the ABS, where this information was available at the time of forecasting. These rates are based on historical estimates for the Shire of Serpentine Jarrahdale, which have been extrapolated into the future, assuming an increase in expectation of life in all age groups (except 85 years and over).

Death rates are influential in shaping the numbers of older people in an area's population. Death rates too have been changing, with higher life expectancy at most ages, with men's life expectancy increasing more than that of women.

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