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Mornington Peninsula ShireCommunity profile

Somerville

Five year age groups

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In 2021, the largest age group in Somerville was 55 to 59 year olds. The group that changed the most since 2011 was 70 to 74 year olds, increasing by 290 people.

The Age Structure of Somerville provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Somerville'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 Somerville'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
Somerville - Total persons (Usual residence)20212011Change
Five year age groups (years)Number%Mornington Peninsula Shire %Number%Mornington Peninsula Shire %2011 to 2021
0 to 47796.64.76956.45.8+83
5 to 97086.05.57596.96.2-52
10 to 147076.06.18417.76.3-134
15 to 196675.75.78287.66.3-161
20 to 246525.54.57426.84.9-91
25 to 297356.24.06265.74.1+109
30 to 348337.14.65825.34.5+250
35 to 397766.65.26926.36.2+84
40 to 446575.65.47596.97.1-102
45 to 496745.76.49098.36.9-236
50 to 547796.67.08497.86.7-71
55 to 598627.36.76796.26.4+182
60 to 647216.17.06115.67.0+110
65 to 696645.67.14123.86.3+252
70 to 745694.87.22792.55.1+290
75 to 793963.45.72692.54.0+126
80 to 842912.53.72252.13.2+65
85 and over3162.73.61891.72.9+126
Total population11,786100.0100.010,955100.0100.0+830
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 Somerville in 2021 compared to Mornington Peninsula Shire 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, 18.6% of the population was aged between 0 and 15, and 19.0% were aged 65 years and over, compared with 16.3% and 27.2% respectively for Mornington Peninsula Shire.

The major differences between the age structure of Somerville and Mornington Peninsula Shire were:

  • A larger percentage of persons aged 30 to 34 (7.1% compared to 4.6%)
  • A larger percentage of persons aged 25 to 29 (6.2% compared to 4.0%)
  • A smaller percentage of persons aged 70 to 74 (4.8% compared to 7.2%)
  • A smaller percentage of persons aged 75 to 79 (3.4% compared to 5.7%)

Emerging groups

From 2011 to 2021, Somerville's population increased by 831 people (7.6%). This represents an average annual population change of 0.73% 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 (+290 persons)
  • 65 to 69 (+252 persons)
  • 30 to 34 (+250 persons)
  • 45 to 49 (-236 persons)

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