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City of BoroondaraCommunity profile

Balwyn

Five year age groups

In 2021, the largest age group in Balwyn was 50 to 54 year olds. The group that changed the most since 2016 was 35 to 39 year olds, increasing by 175 people.

The Age Structure of Balwyn provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Balwyn'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 Balwyn'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
Balwyn - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%City of Boroondara %Number%City of Boroondara %2016 to 2021
0 to 44623.44.05394.04.6-77
5 to 97605.65.37175.46.0+43
10 to 149887.36.78986.76.6+90
15 to 199617.17.11,1218.47.1-160
20 to 249116.77.39597.28.0-48
25 to 297225.36.67825.97.3-60
30 to 346304.65.96044.56.2+26
35 to 398136.05.96384.85.8+175
40 to 448726.46.28266.26.6+46
45 to 499587.06.91,0097.67.4-51
50 to 549907.37.31,0017.57.0-11
55 to 598996.66.68886.76.1+11
60 to 647965.95.77795.95.2+17
65 to 697515.55.06755.14.7+76
70 to 746574.84.55774.33.6+80
75 to 795534.13.44223.22.7+131
80 to 843742.82.43852.92.1-11
85 and over4963.63.04923.72.9+4
Total population13,593100.0100.013,312100.0100.0+281
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 Balwyn in 2021 compared to the City of Boroondara shows that there was a similar 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 20.8% were aged 65 years and over, compared with 16.0% and 18.3% respectively for the City of Boroondara.

The major differences between the age structure of Balwyn and the City of Boroondara were:

  • A larger percentage of persons aged 85 and over (3.6% compared to 3.0%)
  • A larger percentage of persons aged 75 to 79 (4.1% compared to 3.4%)
  • A smaller percentage of persons aged 25 to 29 (5.3% compared to 6.6%)
  • A smaller percentage of persons aged 30 to 34 (4.6% compared to 5.9%)

Emerging groups

From 2016 to 2021, Balwyn's population increased by 281 people (2.1%). This represents an average annual population change of 0.42% per year over the period.

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

  • 35 to 39 (+175 persons)
  • 15 to 19 (-160 persons)
  • 75 to 79 (+131 persons)
  • 10 to 14 (+90 persons)

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