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City of Monash

Five year age groups

In 2021, the largest age group in the City of Monash was 20 to 24 year olds. The group that changed the most since 2011 was 30 to 34 year olds, increasing by 3,093 people.

The Age Structure of the City of Monash 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 Monash'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 Monash'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 Monash - Total persons (Usual residence)20212011Change
Five year age groups (years)Number%Mulgrave %Number%Mulgrave %2011 to 2021
0 to 48,4584.45.58,6705.16.7-212
5 to 910,3565.46.28,6535.15.1+1,703
10 to 1410,7755.76.09,0135.34.8+1,762
15 to 1911,0785.85.310,9386.55.8+140
20 to 2416,1888.55.716,2999.66.8-111
25 to 2915,5938.26.712,9627.77.0+2,631
30 to 3413,6557.27.010,5626.27.7+3,093
35 to 3913,5007.17.511,0886.67.5+2,412
40 to 4412,3886.57.011,9457.17.2+443
45 to 4911,9726.36.811,2546.66.1+718
50 to 5411,7636.26.210,4336.25.7+1,330
55 to 5910,5325.55.59,3625.56.5+1,170
60 to 649,3994.94.98,9405.36.1+459
65 to 698,4714.45.17,8434.65.7+628
70 to 747,8044.14.87,0774.24.2+727
75 to 796,6453.54.25,7323.43.1+913
80 to 845,6233.03.04,5912.72.0+1,032
85 and over6,2043.32.63,9132.31.9+2,291

Source: Australian Bureau of Statistics, Census of Population and Housing 2011 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, Mulgrave: 2.6% 80 to 84, Mulgrave: 3.0% 75 to 79, Mulgrave: 4.2% 70 to 74, Mulgrave: 4.8% 65 to 69, Mulgrave: 5.1% 60 to 64, Mulgrave: 4.9% 55 to 59, Mulgrave: 5.5% 50 to 54, Mulgrave: 6.2% 45 to 49, Mulgrave: 6.8% 40 to 44, Mulgrave: 7.0% 35 to 39, Mulgrave: 7.5% 30 to 34, Mulgrave: 7.0% 25 to 29, Mulgrave: 6.7% 20 to 24, Mulgrave: 5.7% 15 to 19, Mulgrave: 5.3% 10 to 14, Mulgrave: 6.0% 5 to 9, Mulgrave: 6.2% 0 to 4, Mulgrave: 5.5% 85 and over, City of Monash: 3.3% 80 to 84, City of Monash: 3.0% 75 to 79, City of Monash: 3.5% 70 to 74, City of Monash: 4.1% 65 to 69, City of Monash: 4.4% 60 to 64, City of Monash: 4.9% 55 to 59, City of Monash: 5.5% 50 to 54, City of Monash: 6.2% 45 to 49, City of Monash: 6.3% 40 to 44, City of Monash: 6.5% 35 to 39, City of Monash: 7.1% 30 to 34, City of Monash: 7.2% 25 to 29, City of Monash: 8.2% 20 to 24, City of Monash: 8.5% 15 to 19, City of Monash: 5.8% 10 to 14, City of Monash: 5.7% 5 to 9, City of Monash: 5.4% 0 to 4, City of Monash: 4.4%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2021 (Usual residence data)
Compiled and presented in profile.id by .id (informed decisions).
Change in age structure - five year age groups, 2011 to 2021
Change in age structure - five year age groups, 2011 to 2021 85 and over, City of Monash: +2,291 80 to 84, City of Monash: +1,032 75 to 79, City of Monash: +913 70 to 74, City of Monash: +727 65 to 69, City of Monash: +628 60 to 64, City of Monash: +459 55 to 59, City of Monash: +1,170 50 to 54, City of Monash: +1,330 45 to 49, City of Monash: +718 40 to 44, City of Monash: +443 35 to 39, City of Monash: +2,412 30 to 34, City of Monash: +3,093 25 to 29, City of Monash: +2,631 20 to 24, City of Monash: -111 15 to 19, City of Monash: +140 10 to 14, City of Monash: +1,762 5 to 9, City of Monash: +1,703 0 to 4, City of Monash: -212
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 and 2021 (Usual residence data)
Compiled and presented in profile.id by .id (informed decisions).

Dominant groups

Analysis of the five year age groups of the City of Monash in 2021 compared to Mulgrave shows that there was a lower proportion of people in the younger age groups (under 15) as well as a lower proportion of people in the older age groups (65+).

Overall, 15.5% of the population was aged between 0 and 15, and 18.2% were aged 65 years and over, compared with 17.7% and 19.6% respectively for Mulgrave.

The major differences between the age structure of the City of Monash and Mulgrave were:

  • A larger percentage of persons aged 20 to 24 (8.5% compared to 5.7%)
  • A larger percentage of persons aged 25 to 29 (8.2% compared to 6.7%)
  • A smaller percentage of persons aged 0 to 4 (4.4% compared to 5.5%)
  • A smaller percentage of persons aged 5 to 9 (5.4% compared to 6.2%)

Emerging groups

From 2011 to 2021, City of Monash's population increased by 21,129 people (12.5%). This represents an average annual population change of 1.18% per year over the period.

The largest changes in age structure in this area between 2011 and 2021 were in the age groups:

  • 30 to 34 (+3,093 persons)
  • 25 to 29 (+2,631 persons)
  • 35 to 39 (+2,412 persons)
  • 85 and over (+2,291 persons)

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