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Blacktown City CouncilPopulation forecast

Tallawong

Population and age structure

Between 2021 and 2031, the age structure forecasts for Tallawong indicate a 93.9% increase in population under working age, a 163.8% increase in population of retirement age, and a 130.7% increase in population 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
Tallawong - Total persons202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 467010.31,1938.22,4158.1+1,744
5 to 96059.31,1427.92,3497.8+1,743
10 to 144557.01,0207.01,9626.6+1,507
15 to 193885.98926.11,5975.3+1,209
20 to 244717.28565.91,5665.2+1,095
25 to 295949.11,1027.62,0746.9+1,481
30 to 3481612.51,57610.93,04710.2+2,231
35 to 3986613.21,79812.43,68212.3+2,817
40 to 445668.71,75112.13,46511.6+2,899
45 to 493405.21,2658.72,6028.7+2,261
50 to 541983.06424.41,6055.4+1,407
55 to 592253.43992.81,1613.9+935
60 to 641312.03192.29503.2+819
65 to 69911.42601.86962.3+605
70 to 74490.71591.14051.4+357
75 to 79340.5730.52030.7+169
80 to 84150.2320.2880.3+72
85 and over180.3220.2840.3+66
Total persons6,533100.014,499100.029,951100.0+23,418
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), April 2024.

Key findings

In 2021, the dominant age structure for persons in Tallawong was ages 35 to 39, which accounted for 13.2% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 40 to 44, which is expected to increase by 1,185 and account for 12.1% of the total persons.

The largest 5 year age group in 2031 is 35 to 39 years, with a total of 1,798 persons.

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