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Mornington Peninsula ShireCommunity profile

Portsea - Sorrento - Blairgowrie

Five year age groups

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In 2021, the largest age group in Portsea - Sorrento - Blairgowrie was 70 to 74 year olds. The group that changed the most since 2011 was 70 to 74 year olds, increasing by 451 people.

The Age Structure of Portsea - Sorrento - Blairgowrie provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Portsea - Sorrento - Blairgowrie'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 Portsea - Sorrento - Blairgowrie'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
Portsea - Sorrento - Blairgowrie - Total persons (Enumerated)20212011Change
Five year age groups (years)Number%Mornington Peninsula Shire %Number%Mornington Peninsula Shire %2011 to 2021
0 to 42213.64.71644.56.0+57
5 to 92163.55.61774.86.4+39
10 to 142273.76.21534.26.5+74
15 to 192143.55.81343.66.4+80
20 to 242213.64.7912.55.0+130
25 to 291943.24.1882.44.2+106
30 to 342073.44.71103.04.6+97
35 to 392173.55.21514.16.3+66
40 to 442363.85.52376.47.2-1
45 to 492864.76.51554.26.9+131
50 to 544016.57.02416.56.8+160
55 to 594567.46.72707.36.4+186
60 to 645729.36.940611.06.8+166
65 to 6964910.66.839410.75.9+255
70 to 7480113.06.93509.54.7+451
75 to 795599.15.52456.73.8+314
80 to 842904.73.61774.83.1+113
85 and over1792.93.61373.72.9+42
Total population6,146100.0100.03,680100.0100.0+2,466
Source: Australian Bureau of Statistics, Census of Population and Housing 2011 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 Portsea - Sorrento - Blairgowrie in 2021 compared to Mornington Peninsula Shire 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, 10.8% of the population was aged between 0 and 15, and 40.3% were aged 65 years and over, compared with 16.6% and 26.3% respectively for Mornington Peninsula Shire.

The major differences between the age structure of Portsea - Sorrento - Blairgowrie and Mornington Peninsula Shire were:

  • A larger percentage of persons aged 70 to 74 (13.0% compared to 6.9%)
  • A larger percentage of persons aged 65 to 69 (10.6% compared to 6.8%)
  • A larger percentage of persons aged 75 to 79 (9.1% compared to 5.5%)
  • A smaller percentage of persons aged 10 to 14 (3.7% compared to 6.2%)

Emerging groups

From 2011 to 2021, Portsea - Sorrento - Blairgowrie's population increased by 2,466 people (67.0%). This represents an average annual population change of 5.26% per year over the period.

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

  • 70 to 74 (+451 persons)
  • 75 to 79 (+314 persons)
  • 65 to 69 (+255 persons)
  • 55 to 59 (+186 persons)

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