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Blacktown City CouncilPopulation forecast

Blacktown City Council

Population and age structure

Between 2021 and 2031, the age structure forecasts for Blacktown City Council indicate a 0.3% decrease in females under working age, a 33.0% increase in females of retirement age, and a 20.6% increase in females of working age.

Knowledge of how the age structure of the population is changing is essential for planning age-based facilities and services, such as child care, recreation and aged care.

The forecast age groups of Blacktown City Council is a function of the current age of the population (people aging each year, being born and dying) as well as the age of people migrating into and out of the area. This in turn is driven by location (fringe, city centre, regional or rural) the existing housing stock (separate dwellings, medium or high density), the amount and type of new residential development (same as existing stock, or diversifying) and where the area is in a cycle of change. We call this the area’s residential role and function. You can learn more about this in the section household and suburb life cycles.

Forecast age structure - Service age groups
Blacktown City Council - Total females202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
Babies and pre-schoolers (0 to 4)14,9097.514,9026.417,8986.4+2,988
Primary schoolers (5 to 11)21,47510.820,6768.823,6538.4+2,178
Secondary schoolers (12 to 17)15,4077.718,0757.718,2746.5+2,867
Tertiary education and independence (18 to 24)17,3698.722,8439.823,0158.2+5,646
Young workforce (25 to 34)30,88915.534,24714.641,09014.6+10,201
Parents and homebuilders (35 to 49)45,84423.056,56924.265,81923.4+19,975
Older workers and pre-retirees (50 to 59)21,21510.625,49710.935,26412.6+14,049
Empty nesters and retirees (60 to 69)16,7558.419,1548.226,3779.4+9,622
Seniors (70 to 84)12,8186.418,2547.821,9957.8+9,177
Elderly aged (85 and over)2,6811.33,7261.67,3362.6+4,655
Total persons199,363100.0233,944100.0280,721100.0+81,358
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), April 2024.

Key findings

In 2021, the dominant age structure for females in Blacktown City Council was ages Parents and homebuilders (35 to 49), which accounted for 23.0% of the total females.

The largest increase in females between 2021 and 2031 is forecast to be in ages Parents and homebuilders (35 to 49), which is expected to increase by 10,726 and account for 24.2% of the total females.

The largest female 5 year age group in 2031 is Parents and homebuilders (35 to 49) years, with a total of 56,569 females.

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