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Wollondilly Shire CouncilCommunity profile

Wollondilly Shire

Five year age groups

In 2021, the largest age group in Wollondilly Shire was 10 to 14 year olds. The group that changed the most since 2001 was 60 to 64 year olds, increasing by 1,783 people.

The Age Structure of Wollondilly Shire provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Wollondilly Shire'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 Wollondilly Shire'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
Wollondilly Shire - Total persons (Enumerated)20212001Change
Five year age groups (years)Number%Greater Sydney %Number%Greater Sydney %2001 to 2021
0 to 43,7497.06.02,8357.76.7+914
5 to 93,9037.36.33,2728.96.8+631
10 to 144,0107.56.23,4079.26.7+603
15 to 193,6796.95.62,9458.06.9+734
20 to 243,1615.96.52,0685.67.1+1,093
25 to 293,0955.87.52,2366.17.9+859
30 to 343,4306.48.02,6887.38.1+742
35 to 393,5596.67.92,9678.08.0+592
40 to 443,3266.27.03,1148.47.7+212
45 to 493,7457.06.62,7657.56.9+980
50 to 543,5446.66.22,5737.06.5+971
55 to 593,1885.95.81,8305.04.9+1,358
60 to 643,0705.75.31,2873.53.9+1,783
65 to 692,6434.94.59402.53.2+1,703
70 to 742,2964.33.98152.23.0+1,481
75 to 791,5032.82.85951.62.6+908
80 to 849341.72.03631.01.7+571
85 and over7721.42.02560.71.4+516
Total population53,607100.0100.036,956100.0100.0+16,651
Source: Australian Bureau of Statistics, Census of Population and Housing 2001 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 Wollondilly Shire in 2021 compared to Greater Sydney 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, 21.8% of the population was aged between 0 and 15, and 15.2% 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 Wollondilly Shire and Greater Sydney were:

  • A larger percentage of persons aged 10 to 14 (7.5% compared to 6.2%)
  • A smaller percentage of persons aged 25 to 29 (5.8% compared to 7.5%)
  • A smaller percentage of persons aged 30 to 34 (6.4% compared to 8.0%)
  • A smaller percentage of persons aged 35 to 39 (6.6% compared to 7.9%)

Emerging groups

From 2001 to 2021, Wollondilly Shire's population increased by 16,651 people (45.1%). This represents an average annual population change of 1.88% per year over the period.

The largest changes in age structure in this area between 2001 and 2021 were in the age groups:

  • 60 to 64 (+1,783 persons)
  • 65 to 69 (+1,703 persons)
  • 70 to 74 (+1,481 persons)
  • 55 to 59 (+1,358 persons)

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