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Cumberland City CouncilPopulation forecast

Lidcombe (South) - Rookwood

Population and age structure

Between 2021 and 2026, the age structure forecasts for Lidcombe (South) - Rookwood indicate a 18.6% increase in population under working age, a 33.8% increase in population of retirement age, and a 6.6% 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 Cumberland 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
Lidcombe (South) - Rookwood - Total persons202120262036Change between 2021 and 2036
Age group (years)Number%Number%Number%Number
0 to 46466.19107.79687.2+323
5 to 94794.55274.46985.2+219
10 to 145084.85004.26344.7+126
15 to 194974.76605.66985.2+201
20 to 249538.99748.21,1128.2+159
25 to 291,21711.41,28110.81,39310.3+177
30 to 341,24611.71,22210.31,3029.7+56
35 to 399438.81,0238.61,0517.8+108
40 to 446576.27716.58256.1+169
45 to 495985.66635.67885.8+190
50 to 546846.46665.67815.8+97
55 to 596035.76605.66765.0+73
60 to 646065.76135.26424.8+36
65 to 694224.05374.55874.4+165
70 to 742312.23733.14953.7+264
75 to 791641.52171.84193.1+255
80 to 841181.11331.12561.9+138
85 and over1010.91261.11661.2+65
Total persons10,672100.011,857100.013,492100.0+2,820
Source: Population and household forecasts, 2021 to 2036, prepared by .id (informed decisions), March 2023.

Key findings

In 2021, the dominant age structure for persons in Lidcombe (South) - Rookwood was ages 30 to 34, which accounted for 11.7% of the total persons.

The largest increase in persons between 2021 and 2026 is forecast to be in ages 0 to 4, which is expected to increase by 264 and account for 7.7% of the total persons.

The largest 5 year age group in 2026 is 25 to 29 years, with a total of 1,281 persons.

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