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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 4.0% increase in males under working age, a 31.3% increase in males of retirement age, and a 22.6% 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 City Council - Total males202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 415,7097.815,9756.719,1886.6+3,479
5 to 916,1958.116,2346.818,9096.5+2,714
10 to 1415,0187.516,6057.017,9176.1+2,899
15 to 1912,8056.417,0847.217,3625.9+4,557
20 to 2414,2977.117,0107.118,2796.3+3,982
25 to 2914,4337.216,8047.019,7806.8+5,347
30 to 3415,3627.719,0688.022,7277.8+7,365
35 to 3918,3489.119,7108.325,0898.6+6,742
40 to 4415,8787.919,2348.123,7988.1+7,920
45 to 4913,0576.518,6577.822,2127.6+9,155
50 to 5411,0295.514,6586.119,2156.6+8,186
55 to 5910,1035.011,8625.016,8885.8+6,785
60 to 648,5454.39,9694.215,3185.2+6,773
65 to 696,9183.48,4083.511,2383.8+4,320
70 to 745,6582.86,4932.78,2622.8+2,604
75 to 793,5631.84,9202.16,4122.2+2,849
80 to 842,1191.13,7121.64,8841.7+2,765
85 and over1,5050.82,4251.04,6621.6+3,157
Total persons200,542100.0238,827100.0292,139100.0+91,598
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 City Council was ages 35 to 39, which accounted for 9.1% 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 5,600 and account for 7.8% of the total males.

The largest male 5 year age group in 2031 is 35 to 39 years, with a total of 19,710 males.

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