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City of BrimbankCommunity profile

St Albans

Five year age groups

In 2021, the largest age group in St Albans was 25 to 29 year olds. The group that changed the most since 2016 was 20 to 24 year olds, decreasing by 361 people.

The Age Structure of St Albans provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of St Albans's residential role and function and how it is likely to change in the future.

Five year age groups present a classic age profile of the population. Each age group covers exactly five years, which enables direct comparison between each group.

To get a more complete picture St Albans's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.

Q:

Derived from the Census question:

'What is the person's date of birth or age?'

Age structure - Five year age groups
St Albans - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%City of Brimbank %Number%City of Brimbank %2016 to 2021
0 to 42,1425.65.62,4146.56.7-272
5 to 92,1415.66.02,0055.46.0+136
10 to 141,9345.15.71,9145.15.7+20
15 to 192,0125.35.72,2506.06.3-238
20 to 242,9057.66.93,2668.77.8-361
25 to 293,5649.48.13,4839.38.1+81
30 to 343,1948.47.63,0768.28.0+118
35 to 392,7077.17.22,3736.46.9+334
40 to 442,2045.86.42,1745.86.6+30
45 to 492,1095.56.32,2756.16.5-166
50 to 542,2015.86.32,1015.66.3+100
55 to 592,1285.66.12,0895.66.0+39
60 to 642,0245.35.82,0395.55.4-15
65 to 691,9105.05.11,8595.04.7+51
70 to 741,7334.64.31,3983.73.3+335
75 to 791,2313.23.01,1703.12.4+61
80 to 849842.62.08182.21.7+166
85 and over9262.41.96221.71.5+304
Total population38,049100.0100.037,326100.0100.0+723
Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of St Albans in 2021 compared to the City of Brimbank shows that there was a lower proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).

Overall, 16.3% of the population was aged between 0 and 15, and 17.8% were aged 65 years and over, compared with 17.3% and 16.3% respectively for the City of Brimbank.

The major differences between the age structure of St Albans and the City of Brimbank were:

  • A larger percentage of persons aged 25 to 29 (9.4% compared to 8.1%)
  • A larger percentage of persons aged 30 to 34 (8.4% compared to 7.6%)
  • A larger percentage of persons aged 20 to 24 (7.6% compared to 6.9%)
  • A smaller percentage of persons aged 45 to 49 (5.5% compared to 6.3%)

Emerging groups

From 2016 to 2021, St Albans's population increased by 723 people (1.9%). This represents an average annual population change of 0.38% per year over the period.

The largest changes in age structure in this area between 2016 and 2021 were in the age groups:

  • 20 to 24 (-361 persons)
  • 70 to 74 (+335 persons)
  • 35 to 39 (+334 persons)
  • 85 and over (+304 persons)

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