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Bayside CouncilCommunity profile

Bayside Council area

Five year age groups

In 2021, the largest age group in Bayside Council area was 30 to 34 year olds. The group that changed the most since 2016 was 30 to 34 year olds, increasing by 3,234 people.

The Age Structure of Bayside Council area provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Bayside Council area'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 Bayside Council area'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
Bayside Council area - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Greater Sydney %Number%Greater Sydney %2016 to 2021
0 to 49,9865.76.09,5516.16.4+435
5 to 98,5464.96.38,4295.46.4+117
10 to 147,9554.56.27,3714.75.8+584
15 to 197,7734.45.68,1195.26.0-346
20 to 2413,7177.86.611,8797.67.1+1,838
25 to 2918,16410.47.515,53510.07.9+2,629
30 to 3418,37010.58.015,1369.78.1+3,234
35 to 3914,9928.67.912,1117.87.4+2,881
40 to 4411,5576.67.010,7936.97.1+764
45 to 4910,7426.16.69,7936.36.7+949
50 to 549,8825.66.29,1715.96.3+711
55 to 599,3525.35.88,0985.25.8+1,254
60 to 648,1434.65.37,2384.65.0+905
65 to 697,0904.04.56,5134.24.4+577
70 to 746,3993.73.95,1393.33.3+1,260
75 to 794,8752.82.84,2812.72.4+594
80 to 843,8342.22.03,3162.11.8+518
85 and over3,8022.22.03,5822.32.0+220
Total population175,179100.0100.0156,055100.0100.0+19,124
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 Bayside Council area in 2021 compared to Greater Sydney shows that there was a lower proportion of people in the younger age groups (under 15) and a similar proportion of people in the older age groups (65+).

Overall, 15.1% of the population was aged between 0 and 15, and 14.8% were aged 65 years and over, compared with 18.4% and 15.2% respectively for Greater Sydney.

The major differences between the age structure of Bayside Council area and Greater Sydney were:

  • A larger percentage of persons aged 25 to 29 (10.4% compared to 7.5%)
  • A larger percentage of persons aged 30 to 34 (10.5% compared to 8.0%)
  • A smaller percentage of persons aged 10 to 14 (4.5% compared to 6.2%)
  • A smaller percentage of persons aged 5 to 9 (4.9% compared to 6.3%)

Emerging groups

From 2016 to 2021, Bayside Council area's population increased by 19,124 people (12.3%). This represents an average annual population change of 2.34% per year over the period.

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

  • 30 to 34 (+3,234 persons)
  • 35 to 39 (+2,881 persons)
  • 25 to 29 (+2,629 persons)
  • 20 to 24 (+1,838 persons)

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