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Frankston CityCommunity profile

We’re continuing to update these pages with data from the 2016 Census. Read more about our updates.


Five year age groups

This topic has been updated with 2016 Census data for all areas. What's this?

There were 339 people over the age of 85 living in Seaford in 2016, with largest age group being 30 to 34 year olds.

The Age Structure of Seaford provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Seaford'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 Seaford'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?'

Age structure - Five year age groups
Seaford - Total persons (Usual residence)20162011Change
Five year age groups (years)Number%Frankston City %Number%Frankston City %2011 to 2016
0 to 41,0736.66.71,0846.86.9-11
5 to 98775.46.28015.06.0+76
10 to 147444.55.77634.86.3-19
15 to 197414.56.08675.46.7-126
20 to 248825.46.39626.06.7-80
25 to 291,0576.56.61,0876.86.8-30
30 to 341,3208.17.21,2267.66.8+94
35 to 391,2737.86.81,3148.27.3-41
40 to 441,2767.87.11,1897.47.4+87
45 to 491,1807.27.21,0896.87.3+91
50 to 541,0196.26.81,1076.96.8-88
55 to 591,1096.86.51,0306.45.9+79
60 to 649816.05.59215.75.5+60
65 to 699155.65.07995.04.2+116
70 to 747034.33.75983.73.2+105
75 to 795033.12.74973.12.5+6
80 to 843792.31.93822.42.0-3
85 and over3392.12.03121.91.8+27
Total population16,371100.0100.016,028100.0100.0+343
Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented by .id , the population experts.

Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of Seaford in 2016 compared to Frankston City 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, 16.5% of the population was aged between 0 and 15, and 17.3% were aged 65 years and over, compared with 18.7% and 15.4% respectively for Frankston City.

The major differences between the age structure of Seaford and Frankston City were:

  • A larger percentage of persons aged 35 to 39 (7.8% compared to 6.8%)
  • A smaller percentage of persons aged 15 to 19 (4.5% compared to 6.0%)
  • A smaller percentage of persons aged 10 to 14 (4.5% compared to 5.7%)
  • A smaller percentage of persons aged 20 to 24 (5.4% compared to 6.3%)

Emerging groups

From 2011 to 2016, Seaford's population increased by 343 people (2.1%). This represents an average annual population change of 0.42% per year over the period.

The largest changes in age structure in this area between 2011 and 2016 were in the age groups:

  • 15 to 19 (-126 persons)
  • 65 to 69 (+116 persons)
  • 70 to 74 (+105 persons)
  • 30 to 34 (+94 persons)

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