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North Sydney CouncilCommunity profile

North Sydney Council area

Five year age groups

In 2021, the largest age group in North Sydney Council area was 30 to 34 year olds. The group that changed the most since 2016 was 25 to 29 year olds, decreasing by 887 people.

The Age Structure of North Sydney Council area provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of North Sydney Council area'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 North Sydney Council area's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.

Q:

Derived from the Census question:

'What is the person's date of birth or age?'

Age structure - Five year age groups
North Sydney Council area - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Greater Sydney %Number%Greater Sydney %2016 to 2021
0 to 43,4355.06.03,8465.76.4-411
5 to 92,8704.26.32,6924.06.4+178
10 to 142,4213.56.22,0043.05.8+417
15 to 192,1453.15.61,8502.76.0+295
20 to 243,3614.96.63,4405.17.1-79
25 to 296,6509.67.57,53711.17.9-887
30 to 348,00211.68.08,81113.08.1-809
35 to 396,87610.07.96,95210.37.4-76
40 to 445,4617.97.05,3697.97.1+92
45 to 494,5706.66.64,4446.66.7+126
50 to 544,2286.16.23,7745.66.3+454
55 to 593,7945.55.83,7175.55.8+77
60 to 643,6445.35.33,4615.15.0+183
65 to 693,2254.74.53,4005.04.4-175
70 to 743,1934.63.92,5223.73.3+671
75 to 792,3763.42.81,6672.52.4+709
80 to 841,4732.12.01,0131.51.8+460
85 and over1,2261.82.01,1461.72.0+80
Total population68,950100.0100.067,645100.0100.0+1,305
Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of North Sydney Council area in 2021 compared to Greater Sydney 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, 12.7% of the population was aged between 0 and 15, and 16.7% were aged 65 years and over, compared with 18.4% and 15.2% respectively for Greater Sydney.

The major differences between the age structure of North Sydney Council area and Greater Sydney were:

  • A larger percentage of persons aged 30 to 34 (11.6% compared to 8.0%)
  • A smaller percentage of persons aged 10 to 14 (3.5% compared to 6.2%)
  • A smaller percentage of persons aged 15 to 19 (3.1% compared to 5.6%)
  • A smaller percentage of persons aged 5 to 9 (4.2% compared to 6.3%)

Emerging groups

From 2016 to 2021, North Sydney Council area's population increased by 1,305 people (1.9%). This represents an average annual population change of 0.38% per year over the period.

The largest changes in age structure in this area between 2016 and 2021 were in the age groups:

  • 25 to 29 (-887 persons)
  • 30 to 34 (-809 persons)
  • 75 to 79 (+709 persons)
  • 70 to 74 (+671 persons)

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