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Willoughby City CouncilCommunity profile

Willoughby City

Five year age groups

In 2021, there were 35,164 people born overseas living in Willoughby City Council, with largest age group being 35 to 39 year olds in 2021.

The Age Structure of the overseas born population in Willoughby City Council provides key insights into the level of demand for age based services and facilities such as child care and language services. Overseas-born populations may have a quite different age profile to the general population, depending on when the main groups migrated. For instance in a student area they are likely to be younger, however an area which received a lot of post-war migration may have an older population.

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 Willoughby City Council's overseas-born 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?'

Five year age groups
Willoughby City Council - born overseas20212016Change
Five year age groups (years)Number%Willoughby City - Total populationNumber%Willoughby City - Total population2016 to 2021
0 to 42840.85.25801.76.6-296
5 to 91,0142.96.91,0443.17.0-30
10 to 141,2193.56.89182.75.8+301
15 to 191,0332.95.51,2093.65.4-176
20 to 241,3273.85.21,9135.76.0-586
25 to 292,1076.05.82,8948.56.9-787
30 to 342,9788.56.63,88811.58.3-910
35 to 394,15411.88.43,83011.38.6+324
40 to 443,96011.38.43,2699.78.1+691
45 to 493,3359.57.72,7448.17.2+591
50 to 542,6037.46.62,4687.36.3+135
55 to 592,3866.85.82,0296.05.4+357
60 to 642,0755.95.01,8815.64.7+194
65 to 691,9575.64.51,7795.34.4+178
70 to 741,8065.14.11,1233.33.0+683
75 to 791,1233.22.88902.62.2+233
80 to 848672.52.07192.11.8+148
85 and over9362.72.66762.02.3+260
Total people35,164100.0100.033,854100.0100.0+1,310
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 the population born overseas in Willoughby City Council in 2021 compared to the total population in Willoughby City Council 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, 7.2% of the population born overseas was aged between 0 and 14, and 19.0% were aged 65 years and over, compared with 18.9% and 16.0% respectively for the total population in Willoughby City Council.

The major differences between the age structure of the population born overseas in Willoughby City and the total population in Willoughby City Council were:

  • A larger percentage of people aged 35 to 39 (11.8% compared to 8.4%)
  • A smaller percentage of people aged 0 to 4 (0.8% compared to 5.2%)
  • A smaller percentage of people aged 5 to 9 (2.9% compared to 6.9%)
  • A smaller percentage of people aged 10 to 14 (3.5% compared to 6.8%)

Emerging groups

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

  • 30 to 34 (-910 persons)
  • 25 to 29 (-787 persons)
  • 40 to 44 (+691 persons)
  • 70 to 74 (+683 persons)

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