idc-logo
svg rectangle color
City of BrimbankPopulation forecast

Deer Park

Population and age structure

Between 2021 and 2031, the age structure forecasts for Deer Park indicate a 1.0% decrease in population under working age, a 6.1% increase in population of retirement age, and a 5.3% 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 the City of Brimbank 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
Deer Park - Total persons202120312041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 41,2606.81,4447.51,5297.6+268
5 to 91,3737.51,2386.51,2986.4-75
10 to 141,1606.31,0745.61,1845.9+24
15 to 199805.31,1796.11,1715.8+190
20 to 241,1476.21,3006.81,3256.6+178
25 to 291,5608.51,6118.41,7678.7+207
30 to 341,6338.91,6848.81,8269.0+192
35 to 391,5888.61,5548.11,6558.2+67
40 to 441,2726.91,3407.01,4207.0+148
45 to 491,0996.01,2106.31,2396.1+140
50 to 541,0075.51,0545.51,1225.5+115
55 to 599155.09374.91,0275.1+112
60 to 648674.78444.48944.4+27
65 to 698414.67313.87633.8-78
70 to 747744.26553.46553.2-119
75 to 794572.55993.15472.7+90
80 to 843301.84492.34092.0+80
85 and over1530.82781.43952.0+242
Total persons18,418100.019,182100.020,227100.0+1,809
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), July 2023.

Key findings

In 2021, the dominant age structure for persons in Deer Park was ages 30 to 34, which accounted for 8.9% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 15 to 19, which is expected to increase by 198 and account for 6.1% of the total persons.

The largest 5 year age group in 2031 is 30 to 34 years, with a total of 1,684 persons.

DISCLAIMER: While all due care has been taken to ensure that the content of this website is accurate and current, there may be errors or omissions in it and no legal responsibility is accepted for the information and opinions in this website.

Please view our Privacy Policy, Terms of use and Legal notices.

ABS Data and the copyright in the ABS Data remains the property of the Australian Bureau of Statistics. The copyright in the way .id has modified, transformed or reconfigured the ABS Data as published on this website remains the property of .id. ABS Data can be accessed from the Australian Bureau of Statistics at www.abs.gov.au. ABS data can be used under license - terms published on ABS website. intermediary.management@abs.gov.au if you have any queries or wish to distribute any ABS data.