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National Growth Areas AllianceCommunity profile

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

National Growth Areas Alliance (NGAA)

Five year age groups

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

There were 54,987 people over the age of 85 living in the National Growth Areas Alliance (NGAA) in 2016, with largest age group being 30 to 34 year olds.

The Age Structure of the National Growth Areas Alliance (NGAA) provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the National Growth Areas Alliance (NGAA)'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 the National Growth Areas Alliance (NGAA)'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
National Growth Areas Alliance (NGAA) - Total persons (Usual residence)20162011Change
Five year age groups (years)Number%Greater Sydney %Number%Greater Sydney %2011 to 2016
0 to 4345,7397.76.4304,6567.86.8+41,082
5 to 9343,4327.66.4287,4237.46.3+56,009
10 to 14307,6806.85.8286,9777.46.1+20,702
15 to 19301,4716.76.0285,2397.36.3+16,231
20 to 24301,3796.77.1264,2436.87.0+37,136
25 to 29317,6517.07.9273,4947.07.8+44,156
30 to 34349,9777.88.1276,7687.17.7+73,208
35 to 39327,8837.37.4292,4147.57.6+35,469
40 to 44320,6747.17.1290,0177.57.3+30,657
45 to 49306,3496.86.7273,5447.07.0+32,805
50 to 54283,2126.36.3248,3536.46.5+34,859
55 to 59253,8865.65.8215,0155.55.7+38,871
60 to 64217,5954.85.0192,7345.05.1+24,861
65 to 69189,9694.24.4136,7883.53.8+53,181
70 to 74132,7892.93.398,1942.52.9+34,594
75 to 7991,5552.02.469,6931.82.3+21,862
80 to 8459,6421.31.850,6171.31.9+9,024
85 and over54,9871.22.041,4051.11.8+13,581
Total population4,505,870100.0100.03,887,582100.0100.0+618,288
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 the National Growth Areas Alliance (NGAA) in 2016 compared to Greater Sydney 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, 22.1% of the population was aged between 0 and 15, and 11.7% were aged 65 years and over, compared with 18.7% and 13.9% respectively for Greater Sydney.

The major differences between the age structure of the National Growth Areas Alliance (NGAA) and Greater Sydney were:

  • A larger percentage of persons aged 0 to 4 (7.7% compared to 6.4%)
  • A larger percentage of persons aged 5 to 9 (7.6% compared to 6.4%)
  • A larger percentage of persons aged 10 to 14 (6.8% compared to 5.8%)
  • A smaller percentage of persons aged 25 to 29 (7.0% compared to 7.9%)

Emerging groups

From 2011 to 2016, National Growth Areas Alliance (NGAA)'s population increased by 618,288 people (15.9%). This represents an average annual population change of 3.0% per year over the period.

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

  • 30 to 34 (+73,208 persons)
  • 5 to 9 (+56,009 persons)
  • 65 to 69 (+53,181 persons)
  • 25 to 29 (+44,156 persons)

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