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City of OnkaparingaCommunity profile

Port Noarlunga

Five year age groups

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In 2021, the largest age group in Port Noarlunga was 50 to 54 year olds. The group that changed the most since 2006 was 70 to 74 year olds, increasing by 76 people.

The Age Structure of Port Noarlunga provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Port Noarlunga'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 Port Noarlunga'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
Port Noarlunga - Total persons (Enumerated)20212006Change
Five year age groups (years)Number%City of Onkaparinga %Number%City of Onkaparinga %2006 to 2021
0 to 41364.35.41013.96.2+34
5 to 91494.86.31244.86.9+24
10 to 141865.96.31586.17.4+28
15 to 191835.85.91646.47.4+18
20 to 241444.65.61515.86.6-8
25 to 291906.15.91224.75.8+68
30 to 341715.56.31485.76.5+22
35 to 391745.66.71626.37.1+12
40 to 441685.46.21907.37.4-22
45 to 492347.56.41746.77.7+59
50 to 542407.76.61927.47.3+48
55 to 592187.06.41867.27.0+31
60 to 642237.16.31596.24.8+63
65 to 691916.15.81194.63.4+71
70 to 741705.45.6943.62.7+76
75 to 791213.93.81224.72.5-1
80 to 84862.72.3943.71.8-9
85 and over1484.72.21254.81.4+23
Total population3,132100.0100.02,594100.0100.0+538
Source: Australian Bureau of Statistics, Census of Population and Housing 2006 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 Port Noarlunga in 2021 compared to the City of Onkaparinga 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, 15.0% of the population was aged between 0 and 15, and 22.9% were aged 65 years and over, compared with 18.0% and 19.7% respectively for the City of Onkaparinga.

The major differences between the age structure of Port Noarlunga and the City of Onkaparinga were:

  • A larger percentage of persons aged 85 and over (4.7% compared to 2.2%)
  • A larger percentage of persons aged 45 to 49 (7.5% compared to 6.4%)
  • A smaller percentage of persons aged 5 to 9 (4.8% compared to 6.3%)
  • A smaller percentage of persons aged 35 to 39 (5.6% compared to 6.7%)

Emerging groups

From 2006 to 2021, Port Noarlunga's population increased by 538 people (20.7%). This represents an average annual population change of 1.26% per year over the period.

The largest changes in age structure in this area between 2006 and 2021 were in the age groups:

  • 70 to 74 (+76 persons)
  • 65 to 69 (+71 persons)
  • 25 to 29 (+68 persons)
  • 60 to 64 (+63 persons)

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