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City of WhittleseaCommunity profile

Mernda

Five year age groups

In 2021, the largest age group in Mernda was 35 to 39 year olds. The group that changed the most since 2016 was 35 to 39 year olds, increasing by 1,117 people.

The Age Structure of Mernda provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Mernda'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 Mernda'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
Mernda - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Donnybrook %Number%Donnybrook %2016 to 2021
0 to 42,4439.311.72,40412.43.0+39
5 to 92,63210.08.41,6708.63.0+962
10 to 141,9547.55.11,1956.27.7+759
15 to 191,4345.52.99625.07.7+471
20 to 241,4335.56.61,1345.93.6+299
25 to 291,6546.313.51,7529.16.5-98
30 to 342,5159.618.02,39212.46.0+122
35 to 393,02811.514.11,9109.91.8+1,117
40 to 442,2948.76.01,5167.98.9+778
45 to 491,7816.83.11,1606.06.5+621
50 to 541,2914.93.38454.47.7+445
55 to 599683.72.07203.78.3+247
60 to 648643.32.35953.19.5+269
65 to 696922.61.64752.56.5+216
70 to 746152.30.52801.46.0+335
75 to 793491.30.51710.94.2+177
80 to 841930.7--850.43.0+108
85 and over840.30.3400.2--+44
Total population26,224100.0100.019,311100.0100.0+6,913
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 Mernda in 2021 compared to Donnybrook shows that there was a higher proportion of people in the younger age groups (under 15) as well as a higher proportion of people in the older age groups (65+).

Overall, 26.8% of the population was aged between 0 and 15, and 7.4% were aged 65 years and over, compared with 25.3% and 2.9% respectively for Donnybrook.

The major differences between the age structure of Mernda and Donnybrook were:

  • A larger percentage of persons aged 45 to 49 (6.8% compared to 3.1%)
  • A larger percentage of persons aged 40 to 44 (8.7% compared to 6.0%)
  • A smaller percentage of persons aged 30 to 34 (9.6% compared to 18.0%)
  • A smaller percentage of persons aged 25 to 29 (6.3% compared to 13.5%)

Emerging groups

From 2016 to 2021, Mernda's population increased by 6,913 people (35.8%). This represents an average annual population change of 6.31% 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 (+1,117 persons)
  • 5 to 9 (+962 persons)
  • 40 to 44 (+778 persons)
  • 10 to 14 (+759 persons)

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