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City of Boroondara

Five year age groups

In 2021, the largest age group in the City of Boroondara was 20 to 24 year olds. The group that changed the most since 1991 was 50 to 54 year olds, increasing by 5,196 people.

The Age Structure of the City of Boroondara provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the City of Boroondara'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 the City of Boroondara's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.

Derived from the Census question:

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

Total population

Age structure - Five year age groups
City of Boroondara - Total persons (Enumerated)20211991Change
Five year age groups (years)Number%Greater Melbourne %Number%Greater Melbourne %1991 to 2021
0 to 46,5774.05.98,0625.77.3-1,485
5 to 98,8615.46.38,1155.76.9+746
10 to 1411,1856.86.08,7526.27.0+2,433
15 to 1911,7957.15.610,6817.67.9+1,113
20 to 2412,0957.36.712,5418.98.9-447
25 to 2910,9946.67.810,3827.48.4+611
30 to 349,8546.08.310,3647.38.5-511
35 to 399,8736.08.110,3737.37.8-501
40 to 4410,3786.36.911,1217.97.6-744
45 to 4911,5067.06.59,0386.46.0+2,467
50 to 5412,0237.36.36,8274.84.9+5,196
55 to 5910,9156.65.65,7734.14.2+5,142
60 to 649,3895.75.16,2034.44.0+3,186
65 to 698,0564.94.36,0094.33.6+2,047
70 to 747,4344.53.85,3493.82.7+2,084
75 to 795,5983.42.84,9763.52.1+622
80 to 844,0282.42.03,5452.51.3+483
85 and over4,9303.02.03,0742.20.9+1,855

Source: Australian Bureau of Statistics, Census of Population and Housing 1991 and 2021. Compiled and presented by .id (informed decisions).

Age structure - five year age groups, 2021
Age structure - five year age groups, 2021 85 and over, Greater Melbourne: 2.0% 80 to 84, Greater Melbourne: 2.0% 75 to 79, Greater Melbourne: 2.8% 70 to 74, Greater Melbourne: 3.8% 65 to 69, Greater Melbourne: 4.3% 60 to 64, Greater Melbourne: 5.1% 55 to 59, Greater Melbourne: 5.6% 50 to 54, Greater Melbourne: 6.3% 45 to 49, Greater Melbourne: 6.5% 40 to 44, Greater Melbourne: 6.9% 35 to 39, Greater Melbourne: 8.1% 30 to 34, Greater Melbourne: 8.3% 25 to 29, Greater Melbourne: 7.8% 20 to 24, Greater Melbourne: 6.7% 15 to 19, Greater Melbourne: 5.6% 10 to 14, Greater Melbourne: 6.0% 5 to 9, Greater Melbourne: 6.3% 0 to 4, Greater Melbourne: 5.9% 85 and over, City of Boroondara: 3.0% 80 to 84, City of Boroondara: 2.4% 75 to 79, City of Boroondara: 3.4% 70 to 74, City of Boroondara: 4.5% 65 to 69, City of Boroondara: 4.9% 60 to 64, City of Boroondara: 5.7% 55 to 59, City of Boroondara: 6.6% 50 to 54, City of Boroondara: 7.3% 45 to 49, City of Boroondara: 7.0% 40 to 44, City of Boroondara: 6.3% 35 to 39, City of Boroondara: 6.0% 30 to 34, City of Boroondara: 6.0% 25 to 29, City of Boroondara: 6.6% 20 to 24, City of Boroondara: 7.3% 15 to 19, City of Boroondara: 7.1% 10 to 14, City of Boroondara: 6.8% 5 to 9, City of Boroondara: 5.4% 0 to 4, City of Boroondara: 4.0%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2021 (Enumerated data)
Compiled and presented in profile.id by .id (informed decisions).
Change in age structure - five year age groups, 1991 to 2021
Change in age structure - five year age groups, 1991 to 2021 85 and over, City of Boroondara: +1,855 80 to 84, City of Boroondara: +483 75 to 79, City of Boroondara: +622 70 to 74, City of Boroondara: +2,084 65 to 69, City of Boroondara: +2,047 60 to 64, City of Boroondara: +3,186 55 to 59, City of Boroondara: +5,142 50 to 54, City of Boroondara: +5,196 45 to 49, City of Boroondara: +2,467 40 to 44, City of Boroondara: -744 35 to 39, City of Boroondara: -501 30 to 34, City of Boroondara: -511 25 to 29, City of Boroondara: +611 20 to 24, City of Boroondara: -447 15 to 19, City of Boroondara: +1,113 10 to 14, City of Boroondara: +2,433 5 to 9, City of Boroondara: +746 0 to 4, City of Boroondara: -1,485
Source: Australian Bureau of Statistics, Census of Population and Housing, 1991 and 2021 (Enumerated data)
Compiled and presented in profile.id by .id (informed decisions).

Dominant groups

Analysis of the five year age groups of the City of Boroondara in 2021 compared to Greater Melbourne 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, 16.1% of the population was aged between 0 and 15, and 18.2% were aged 65 years and over, compared with 18.2% and 14.9% respectively for Greater Melbourne.

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

  • A larger percentage of persons aged 15 to 19 (7.1% compared to 5.6%)
  • A smaller percentage of persons aged 30 to 34 (6.0% compared to 8.3%)
  • A smaller percentage of persons aged 35 to 39 (6.0% compared to 8.1%)
  • A smaller percentage of persons aged 0 to 4 (4.0% compared to 5.9%)

Emerging groups

From 1991 to 2021, City of Boroondara's population increased by 24,296 people (17.2%). This represents an average annual population change of 0.53% 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 (+5,196 persons)
  • 55 to 59 (+5,142 persons)
  • 60 to 64 (+3,186 persons)
  • 45 to 49 (+2,467 persons)

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