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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 2016 was 70 to 74 year olds, increasing by 705 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 (Usual residence)20212016Change
Five year age groups (years)Number%Greater Sydney %Number%Greater Sydney %2016 to 2021
0 to 43,7657.06.03,3136.86.4+452
5 to 93,9267.36.33,7377.76.4+189
10 to 144,0267.56.23,6287.55.8+398
15 to 193,7126.95.63,4117.06.0+301
20 to 243,1885.96.62,9026.07.1+286
25 to 293,0815.77.52,7495.77.9+332
30 to 343,4546.48.02,9586.18.1+496
35 to 393,5506.67.93,0116.27.4+539
40 to 443,3486.27.03,5557.37.1-207
45 to 493,7597.06.63,5027.26.7+257
50 to 543,5876.76.23,2656.76.3+322
55 to 593,2156.05.83,2126.65.8+3
60 to 643,0965.75.32,8035.85.0+293
65 to 692,6825.04.52,3874.94.4+295
70 to 742,3204.33.91,6153.33.3+705
75 to 791,5172.82.81,0862.22.4+431
80 to 849441.82.07201.51.8+224
85 and over7661.42.06521.32.0+114
Total population53,936100.0100.048,506100.0100.0+5,430
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 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, 21.7% of the population was aged between 0 and 15, and 15.3% 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 (5.7% 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 2016 to 2021, Wollondilly Shire's population increased by 5,430 people (11.2%). This represents an average annual population change of 2.14% per year over the period.

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

  • 70 to 74 (+705 persons)
  • 35 to 39 (+539 persons)
  • 30 to 34 (+496 persons)
  • 0 to 4 (+452 persons)

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