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City of BrimbankCommunity profile

2016 Census data has been released and we are busy processing it to update this website. View our latest releases here.

Sydenham District

Five year age groups

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

There were 678 people over the age of 85 living in Sydenham District in 2016, with largest age group being 20 to 24 year olds.

The Age Structure of Sydenham District provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Sydenham District'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 Sydenham District'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
Sydenham District - Total persons (Usual residence)20162011Change
Five year age groups (years)Number%City of Brimbank %Number%City of Brimbank %2011 to 2016
0 to 42,3155.16.72,5925.66.6-277
5 to 92,5215.56.03,1836.96.2-662
10 to 142,9756.55.73,3657.36.3-390
15 to 193,3897.46.33,9278.57.0-538
20 to 243,7428.27.83,8548.37.9-112
25 to 293,3137.28.13,1726.88.4+141
30 to 342,8716.38.02,7776.07.5+94
35 to 392,6635.86.93,2297.07.2-566
40 to 443,0566.76.63,6277.87.1-571
45 to 493,5507.76.53,8818.46.7-331
50 to 543,6618.06.33,6227.86.5+39
55 to 593,4127.46.02,8566.26.0+556
60 to 642,7726.05.42,1664.75.3+606
65 to 692,0524.54.71,5723.43.8+480
70 to 741,3873.03.39882.12.9+399
75 to 798881.92.47221.62.1+166
80 to 845961.31.74551.01.5+141
85 and over6781.51.53960.91.2+282
Total population45,841100.0100.046,384100.0100.0-543
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 Sydenham District in 2016 compared to City of Brimbank 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, 17.0% of the population was aged between 0 and 15, and 12.2% were aged 65 years and over, compared with 18.5% and 13.6% respectively for City of Brimbank.

The major differences between the age structure of Sydenham District and City of Brimbank were:

  • A larger percentage of persons aged 50 to 54 (8.0% compared to 6.3%)
  • A larger percentage of persons aged 55 to 59 (7.4% compared to 6.0%)
  • A smaller percentage of persons aged 30 to 34 (6.3% compared to 8.0%)
  • A smaller percentage of persons aged 0 to 4 (5.1% compared to 6.7%)

Emerging groups

From 2011 to 2016, Sydenham District's population decreased by 543 people (1.2%). This represents an average annual population change of -0.24% per year over the period.

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

  • 5 to 9 (-662 persons)
  • 60 to 64 (+606 persons)
  • 40 to 44 (-571 persons)
  • 35 to 39 (-566 persons)