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Northern Beaches CouncilCommunity profile

Northern Beaches Council area

Five year age groups

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In 2021, the largest age group in Northern Beaches Council area was 45 to 49 year olds. The group that changed the most since 2016 was 55 to 59 year olds, increasing by 2,165 people.

The Age Structure of Northern Beaches Council area provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Northern Beaches Council area'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 Northern Beaches Council area'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
Northern Beaches Council area - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Greater Sydney %Number%Greater Sydney %2016 to 2021
0 to 414,1695.46.015,6726.26.4-1,503
5 to 916,2746.26.317,9677.16.4-1,693
10 to 1418,2916.96.216,2106.45.8+2,081
15 to 1916,2636.25.614,4125.76.0+1,851
20 to 2413,7405.26.612,5545.07.1+1,186
25 to 2913,2805.07.513,4915.37.9-211
30 to 3415,5995.98.016,0836.48.1-484
35 to 3917,0786.57.917,8837.17.4-805
40 to 4418,4267.07.020,3118.07.1-1,885
45 to 4920,5177.86.619,5377.76.7+980
50 to 5419,4927.46.217,8547.16.3+1,638
55 to 5917,5136.65.815,3486.15.8+2,165
60 to 6414,9685.75.313,0725.25.0+1,896
65 to 6912,5394.84.512,1844.84.4+355
70 to 7411,6744.43.910,2564.13.3+1,418
75 to 799,7223.72.87,6143.02.4+2,108
80 to 846,7732.62.05,4662.21.8+1,307
85 and over7,2432.72.06,9452.72.0+298
Total population263,561100.0100.0252,859100.0100.0+10,702
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 Northern Beaches Council area in 2021 compared to Greater Sydney shows that there was a similar proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).

Overall, 18.5% of the population was aged between 0 and 15, and 18.2% 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 Northern Beaches Council area and Greater Sydney were:

  • A smaller percentage of persons aged 25 to 29 (5.0% compared to 7.5%)
  • A smaller percentage of persons aged 30 to 34 (5.9% compared to 8.0%)
  • A smaller percentage of persons aged 35 to 39 (6.5% compared to 7.9%)
  • A smaller percentage of persons aged 20 to 24 (5.2% compared to 6.6%)

Emerging groups

From 2016 to 2021, Northern Beaches Council area's population increased by 10,702 people (4.2%). This represents an average annual population change of 0.83% per year over the period.

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

  • 55 to 59 (+2,165 persons)
  • 75 to 79 (+2,108 persons)
  • 10 to 14 (+2,081 persons)
  • 60 to 64 (+1,896 persons)

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