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AustraliaCommunity profile

New South Wales

Five year age groups

In 2021, the largest age group in New South Wales was 30 to 34 year olds. The group that changed the most since 2016 was 35 to 39 year olds, increasing by 80,461 people.

The Age Structure of New South Wales provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of New South Wales'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 New South Wales'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
New South Wales - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Australia %Number%Australia %2016 to 2021
0 to 4468,0565.85.8465,1356.26.3+2,921
5 to 9500,8106.26.2478,1846.46.4+22,626
10 to 14501,1356.26.2443,0095.96.0+58,126
15 to 19457,8965.75.7448,4256.06.1+9,471
20 to 24496,1856.16.2489,6736.56.7+6,512
25 to 29555,9676.97.0527,1617.07.1+28,806
30 to 34586,0577.37.3540,3607.27.3+45,697
35 to 39580,1857.27.2499,7246.76.7+80,461
40 to 44522,9846.56.5503,1696.76.8+19,815
45 to 49516,9156.46.4492,4406.66.8+24,475
50 to 54500,0276.26.3485,5466.56.5+14,481
55 to 59490,1556.16.1469,7266.36.2+20,429
60 to 64471,6285.85.8420,0445.65.6+51,584
65 to 69416,4935.25.1384,4705.15.1+32,023
70 to 74372,2344.64.6292,5563.93.8+79,678
75 to 79268,1103.33.2217,3082.92.8+50,802
80 to 84183,4092.32.2155,8062.12.0+27,603
85 and over183,8952.32.1167,5062.22.1+16,389
Total population8,072,141100.0100.07,480,242100.0100.0+591,899
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 New South Wales in 2021 compared to Australia shows that there was a similar proportion of people in the younger age groups (under 15) as well as a similar proportion of people in the older age groups (65+).

Overall, 18.2% of the population was aged between 0 and 15, and 17.6% were aged 65 years and over, compared with 18.2% and 17.2% respectively for Australia.

There were no major differences between New South Wales and Australia in 2021.

Emerging groups

From 2016 to 2021, New South Wales's population increased by 591,899 people (7.9%). This represents an average annual population change of 1.53% per year over the period.

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

  • 35 to 39 (+80,461 persons)
  • 70 to 74 (+79,678 persons)
  • 10 to 14 (+58,126 persons)
  • 60 to 64 (+51,584 persons)

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