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City of BoroondaraCommunity profile

Balwyn North

Five year age groups

In 2021, the largest age group in Balwyn North was 15 to 19 year olds. The group that changed the most since 1991 was 50 to 54 year olds, increasing by 690 people.

The Age Structure of Balwyn North 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 North'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 North'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 North - Total persons (Enumerated)20211991Change
Five year age groups (years)Number%City of Boroondara %Number%City of Boroondara %1991 to 2021
0 to 47123.44.08674.95.7-156
5 to 91,2035.75.41,0195.75.7+184
10 to 141,8298.76.81,2216.96.2+608
15 to 191,8638.97.11,3217.47.6+541
20 to 241,4316.87.31,3687.78.9+62
25 to 299524.56.61,0245.87.4-73
30 to 348604.16.01,0495.97.3-190
35 to 399494.56.01,0796.17.3-131
40 to 441,3096.36.31,3437.57.9-34
45 to 491,6107.77.01,1306.36.4+479
50 to 541,7168.27.31,0255.84.8+690
55 to 591,5377.36.61,0265.84.1+510
60 to 641,3146.35.71,1956.74.4+118
65 to 699524.54.91,1246.34.3-173
70 to 749104.34.58544.83.8+55
75 to 796463.13.46123.43.5+34
80 to 845342.62.43291.82.5+205
85 and over6112.93.02141.22.2+397
Total population20,938100.0100.017,810100.0100.0+3,127
Source: Australian Bureau of Statistics, Census of Population and Housing 1991 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 North in 2021 compared to the City of Boroondara shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).

Overall, 17.9% of the population was aged between 0 and 15, and 17.4% were aged 65 years and over, compared with 16.1% and 18.2% respectively for the City of Boroondara.

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

  • A larger percentage of persons aged 10 to 14 (8.7% compared to 6.8%)
  • A larger percentage of persons aged 15 to 19 (8.9% compared to 7.1%)
  • A smaller percentage of persons aged 25 to 29 (4.5% compared to 6.6%)
  • A smaller percentage of persons aged 30 to 34 (4.1% compared to 6.0%)

Emerging groups

From 1991 to 2021, Balwyn North's population increased by 3,128 people (17.6%). This represents an average annual population change of 0.54% per year over the period.

The largest changes in age structure in this area between 1991 and 2021 were in the age groups:

  • 50 to 54 (+690 persons)
  • 10 to 14 (+608 persons)
  • 15 to 19 (+541 persons)
  • 55 to 59 (+510 persons)

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