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Blacktown City CouncilCommunity profile

Blacktown City

Five year age groups

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There were 48,533 people in low income households living in Blacktown City Council, with largest age group being 5 to 9 year olds in 2021.

The age structure of the population is a key indicator of the residential role and function of an area, and who it houses. For low income households the age breakdown can tell the story of the area, in terms of whether the low incomes are predominantly due to age (eg. aged pensioners) or other factors. Areas with high pensioner populations, or tertiary students may both have low incomes but for different reasons.

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 Blacktown City Council's Age Structure for those in low income households should be viewed in conjunction with Dwelling Types, Tenure, and Occupations.

Q:

Derived from the Census question:

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

Five year age groups
Blacktown City Council - Low income households20212016Change
Five year age groups (years)Number%Greater SydneyNumber%Greater Sydney2016 to 2021
0 to 43,8437.95.85,3999.06.8-1,556
5 to 94,4429.27.05,9059.97.5-1,463
10 to 144,3849.07.05,4069.07.0-1,022
15 to 193,5287.36.24,8238.17.4-1,295
20 to 241,8803.94.52,9414.97.0-1,061
25 to 291,7183.53.62,6214.45.1-903
30 to 342,2784.74.23,3195.65.0-1,041
35 to 392,5825.34.83,6576.15.2-1,075
40 to 442,5275.24.83,3675.65.3-840
45 to 492,2354.64.63,0135.05.1-778
50 to 541,9644.04.32,4234.14.6-459
55 to 592,0144.14.62,4114.04.4-397
60 to 642,4955.15.92,9384.95.2-443
65 to 693,4027.07.63,6456.16.4-243
70 to 743,7477.78.53,1185.26.0+629
75 to 792,6475.56.92,3023.95.1+345
80 to 841,6943.55.11,4412.43.8+253
85 and over1,1532.44.51,0211.73.3+132
Total people counted in private dwellings48,533100.0100.059,750100.0100.0-11,217
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 for low income households in Blacktown City Council in 2021 compared to Greater Sydney, shows that there was a similar proportion of people in low income households in the younger age groups (under 15) and a lower proportion in the older age groups (65+).

Overall, 26.1% of people in low income households were aged between 0 and 15, and 26.1% were aged 65 years and over, compared with 19.8% and 32.6% respectively for Greater Sydney.

The major differences between the five year age groups of low income households in Blacktown City Council and Greater Sydney were:

  • A larger percentage of people aged 5 to 9 (9.2% compared to 7.0%)
  • A larger percentage of people aged 0 to 4 (7.9% compared to 5.8%)
  • A larger percentage of people aged 10 to 14 (9.0% compared to 7.0%)
  • A smaller percentage of people aged 85 and over (2.4% compared to 4.5%)

Emerging groups

From 2016 to 2021, the number of people in low income households decreased by 11,217 people (18.8%) in Blacktown City. This represents an average annual population change of -4.07% per year over the period.

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

  • 0 to 4 (-1,556 persons)
  • 5 to 9 (-1,463 persons)
  • 15 to 19 (-1,295 persons)
  • 35 to 39 (-1,075 persons)

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