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There were 125 people over the age of 85 living in Sydenham in 2011, with largest age group being 25 to 29 year olds.

The Age Structure of Sydenham 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'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'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 last birthday)?'

Total population

Age structure - Five year age groups
Sydenham - Total persons (Usual residence)20112006Change
Five year age groups (years)Number%City of Brimbank %Number%City of Brimbank %2006 to 2011
0 to 47637.46.68639.06.5-100
5 to 98037.86.28398.76.8-36
10 to 146976.86.37938.27.2-96
15 to 197707.57.07017.37.4+69
20 to 248318.07.97117.47.6+120
25 to 299018.78.47497.87.1+152
30 to 348618.37.59469.87.3-85
35 to 398928.67.28598.97.5+33
40 to 447947.77.17828.17.3+12
45 to 497737.56.77037.37.2+70
50 to 546326.16.54865.06.9+146
55 to 594584.46.03433.66.2+115
60 to 643443.35.32602.74.5+84
65 to 692952.93.81851.93.4+110
70 to 741641.62.91031.12.7+61
75 to 791211.22.1900.92.1+31
80 to 841011.01.5690.71.4+32
85 and over1251.21.21501.60.9-25

Source: Australian Bureau of Statistics, Census of Population and Housing 2006 and 2011. Compiled and presented by .id , the population experts.

Age structure - five year age groups, 2011
Age structure - five year age groups, 2011 85 and over, City of Brimbank: 1.2% 80 to 84, City of Brimbank: 1.5% 75 to 79, City of Brimbank: 2.1% 70 to 74, City of Brimbank: 2.9% 65 to 69, City of Brimbank: 3.8% 60 to 64, City of Brimbank: 5.3% 55 to 59, City of Brimbank: 6.0% 50 to 54, City of Brimbank: 6.5% 45 to 49, City of Brimbank: 6.7% 40 to 44, City of Brimbank: 7.1% 35 to 39, City of Brimbank: 7.2% 30 to 34, City of Brimbank: 7.5% 25 to 29, City of Brimbank: 8.4% 20 to 24, City of Brimbank: 7.9% 15 to 19, City of Brimbank: 7.0% 10 to 14, City of Brimbank: 6.3% 5 to 9, City of Brimbank: 6.2% 0 to 4, City of Brimbank: 6.6% 85 and over, Sydenham: 1.2% 80 to 84, Sydenham: 1.0% 75 to 79, Sydenham: 1.2% 70 to 74, Sydenham: 1.6% 65 to 69, Sydenham: 2.9% 60 to 64, Sydenham: 3.3% 55 to 59, Sydenham: 4.4% 50 to 54, Sydenham: 6.1% 45 to 49, Sydenham: 7.5% 40 to 44, Sydenham: 7.7% 35 to 39, Sydenham: 8.6% 30 to 34, Sydenham: 8.3% 25 to 29, Sydenham: 8.7% 20 to 24, Sydenham: 8.0% 15 to 19, Sydenham: 7.5% 10 to 14, Sydenham: 6.8% 5 to 9, Sydenham: 7.8% 0 to 4, Sydenham: 7.4%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.
Change in age structure - five year age groups, 2006 to 2011
Change in age structure - five year age groups, 2006 to 2011 85 and over, Sydenham: -25 80 to 84, Sydenham: +32 75 to 79, Sydenham: +31 70 to 74, Sydenham: +61 65 to 69, Sydenham: +110 60 to 64, Sydenham: +84 55 to 59, Sydenham: +115 50 to 54, Sydenham: +146 45 to 49, Sydenham: +70 40 to 44, Sydenham: +12 35 to 39, Sydenham: +33 30 to 34, Sydenham: -85 25 to 29, Sydenham: +152 20 to 24, Sydenham: +120 15 to 19, Sydenham: +69 10 to 14, Sydenham: -96 5 to 9, Sydenham: -36 0 to 4, Sydenham: -100
Source: Australian Bureau of Statistics, Census of Population and Housing, 2006 and 2011 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.

Dominant groups

Analysis of the five year age groups of Sydenham in 2011 compared to City of Brimbank 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, 21.9% of the population was aged between 0 and 15, and 7.8% were aged 65 years and over, compared with 19.0% and 11.5% respectively for City of Brimbank.

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

  • A larger percentage of persons aged 5 to 9 (7.8% compared to 6.2%)
  • A larger percentage of persons aged 35 to 39 (8.6% compared to 7.2%)
  • A smaller percentage of persons aged 60 to 64 (3.3% compared to 5.3%)
  • A smaller percentage of persons aged 55 to 59 (4.4% compared to 6.0%)

Emerging groups

From 2006 to 2011, Sydenham's population increased by 693 people (7.2%). This represents an average annual population change of 1.4% per year over the period.

The largest changes in age structure in this area between 2006 and 2011 were in the age groups:

  • 25 to 29 (+152 persons)
  • 50 to 54 (+146 persons)
  • 20 to 24 (+120 persons)
  • 55 to 59 (+115 persons)