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Williamstown

Five year age groups

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

There were 209 people over the age of 85 living in Williamstown in 2016, with largest age group being 45 to 49 year olds.

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

Total population

Age structure - Five year age groups
Williamstown - Total persons (Usual residence)20162011Change
Five year age groups (years)Number%Hobsons Bay City %Number%Hobsons Bay City %2011 to 2016
0 to 46595.96.87377.06.9-78
5 to 98037.26.46796.45.6+124
10 to 146956.25.27196.85.6-23
15 to 197026.35.26366.05.8+66
20 to 245825.25.84854.66.3+97
25 to 294964.46.94204.07.1+76
30 to 345314.87.85905.67.4-59
35 to 397086.37.68137.77.9-104
40 to 448397.57.69078.68.0-69
45 to 499668.77.31,0169.67.5-50
50 to 549658.66.98448.07.0+120
55 to 598948.06.47216.85.8+174
60 to 647206.45.26245.95.0+96
65 to 696075.44.44324.13.8+175
70 to 743713.33.32992.83.2+72
75 to 792512.32.71791.72.9+72
80 to 841681.52.22382.32.2-70
85 and over2091.92.22422.31.9-32

Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented by .id , the population experts.

Age structure - five year age groups, 2016
Age structure - five year age groups, 2016 85 and over, Hobsons Bay City: 2.2% 80 to 84, Hobsons Bay City: 2.2% 75 to 79, Hobsons Bay City: 2.7% 70 to 74, Hobsons Bay City: 3.3% 65 to 69, Hobsons Bay City: 4.4% 60 to 64, Hobsons Bay City: 5.2% 55 to 59, Hobsons Bay City: 6.4% 50 to 54, Hobsons Bay City: 6.9% 45 to 49, Hobsons Bay City: 7.3% 40 to 44, Hobsons Bay City: 7.6% 35 to 39, Hobsons Bay City: 7.6% 30 to 34, Hobsons Bay City: 7.8% 25 to 29, Hobsons Bay City: 6.9% 20 to 24, Hobsons Bay City: 5.8% 15 to 19, Hobsons Bay City: 5.2% 10 to 14, Hobsons Bay City: 5.2% 5 to 9, Hobsons Bay City: 6.4% 0 to 4, Hobsons Bay City: 6.8% 85 and over, Williamstown: 1.9% 80 to 84, Williamstown: 1.5% 75 to 79, Williamstown: 2.3% 70 to 74, Williamstown: 3.3% 65 to 69, Williamstown: 5.4% 60 to 64, Williamstown: 6.4% 55 to 59, Williamstown: 8.0% 50 to 54, Williamstown: 8.6% 45 to 49, Williamstown: 8.7% 40 to 44, Williamstown: 7.5% 35 to 39, Williamstown: 6.3% 30 to 34, Williamstown: 4.8% 25 to 29, Williamstown: 4.4% 20 to 24, Williamstown: 5.2% 15 to 19, Williamstown: 6.3% 10 to 14, Williamstown: 6.2% 5 to 9, Williamstown: 7.2% 0 to 4, Williamstown: 5.9%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2016 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.
Change in age structure - five year age groups, 2011 to 2016
Change in age structure - five year age groups, 2011 to 2016 85 and over, Williamstown: -32 80 to 84, Williamstown: -70 75 to 79, Williamstown: +72 70 to 74, Williamstown: +72 65 to 69, Williamstown: +175 60 to 64, Williamstown: +96 55 to 59, Williamstown: +174 50 to 54, Williamstown: +120 45 to 49, Williamstown: -50 40 to 44, Williamstown: -69 35 to 39, Williamstown: -104 30 to 34, Williamstown: -59 25 to 29, Williamstown: +76 20 to 24, Williamstown: +97 15 to 19, Williamstown: +66 10 to 14, Williamstown: -23 5 to 9, Williamstown: +124 0 to 4, Williamstown: -78
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 and 2016 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.

Dominant groups

Analysis of the five year age groups of Williamstown in 2016 compared to Hobsons Bay City shows that there was a higher proportion of people in the younger age groups (under 15) and a similar proportion of people in the older age groups (65+).

Overall, 19.3% of the population was aged between 0 and 15, and 14.4% were aged 65 years and over, compared with 18.4% and 14.8% respectively for Hobsons Bay City.

The major differences between the age structure of Williamstown and Hobsons Bay City were:

  • A larger percentage of persons aged 50 to 54 (8.6% compared to 6.9%)
  • A larger percentage of persons aged 55 to 59 (8.0% compared to 6.4%)
  • A smaller percentage of persons aged 30 to 34 (4.8% compared to 7.8%)
  • A smaller percentage of persons aged 25 to 29 (4.4% compared to 6.9%)

Emerging groups

From 2011 to 2016, Williamstown's population increased by 585 people (5.5%). This represents an average annual population change of 1.08% per year over the period.

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

  • 65 to 69 (+175 persons)
  • 55 to 59 (+174 persons)
  • 5 to 9 (+124 persons)
  • 50 to 54 (+120 persons)

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