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Blacktown City CouncilPopulation forecast

Blacktown

Population and age structure

Between 2021 and 2031, the age structure forecasts for Blacktown indicate a 1.7% increase in males under working age, a 19.1% increase in males of retirement age, and a 8.2% increase in males 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 - 5 year age groups
Blacktown - Total males202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 41,8737.21,8986.72,2496.6+376
5 to 91,6976.51,6816.01,9115.6+214
10 to 141,5596.01,6375.81,6895.0+129
15 to 191,3625.21,7506.21,7535.2+391
20 to 242,2658.72,1567.62,3066.8+41
25 to 292,5149.62,4338.62,8568.4+342
30 to 342,3298.92,5078.92,9588.7+630
35 to 392,4139.32,3378.32,9688.7+554
40 to 441,8527.11,9947.12,3677.0+515
45 to 491,4545.61,9556.92,2676.7+813
50 to 541,3735.31,5945.72,0025.9+629
55 to 591,3575.21,3914.91,9285.7+572
60 to 641,1214.31,4025.01,9995.9+878
65 to 699183.51,2004.31,5314.5+613
70 to 746872.68703.11,1553.4+468
75 to 795382.16432.39112.7+373
80 to 844111.64251.56391.9+228
85 and over3451.33141.14341.3+89
Total persons26,068100.028,186100.033,924100.0+7,856
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), April 2024.

Key findings

In 2021, the dominant age structure for males in Blacktown was ages 25 to 29, which accounted for 9.6% of the total males.

The largest increase in males between 2021 and 2031 is forecast to be in ages 45 to 49, which is expected to increase by 501 and account for 6.9% of the total males.

The largest male 5 year age group in 2031 is 30 to 34 years, with a total of 2,507 males.

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