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City of OnkaparingaCommunity profile

2016 Census data has been released and we are busy processing it to update this website. View our latest releases here.

Happy Valley

Five year age groups

This topic has been updated with 2016 Census data for all areas. What's this?

There were 272 people over the age of 85 living in Happy Valley in 2016, with largest age group being 60 to 64 year olds.

The Age Structure of Happy Valley provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Happy Valley'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 Happy Valley's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.


Derived from the Census question:

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

Age structure - Five year age groups
Happy Valley - Total persons (Usual residence)20162011Change
Five year age groups (years)Number%City of Onkaparinga %Number%City of Onkaparinga %2011 to 2016
0 to 46365.76.27006.26.6-64
5 to 97526.76.46695.96.3+83
10 to 146565.86.17126.36.7-56
15 to 196395.76.27816.96.8-142
20 to 246155.56.07126.36.2-97
25 to 296495.85.96645.96.4-15
30 to 347226.46.57626.76.2-40
35 to 397456.66.37856.96.6-40
40 to 447156.46.67997.17.1-84
45 to 497416.66.97316.57.1+10
50 to 546836.16.78377.47.0-154
55 to 597666.86.68687.76.6-102
60 to 648147.36.37716.86.5+43
65 to 697867.06.14253.84.6+361
70 to 744213.84.33322.93.2+89
75 to 793252.92.83032.72.4+22
80 to 842792.52.02662.32.0+13
85 and over2722.42.12081.81.8+64
Total population11,220100.0100.011,329100.0100.0-109
Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented by .id , the population experts.

Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of Happy Valley in 2016 compared to 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, 18.2% of the population was aged between 0 and 15, and 18.6% were aged 65 years and over, compared with 18.7% and 17.3% respectively for City of Onkaparinga.

The major differences between the age structure of Happy Valley and City of Onkaparinga were:

  • A larger percentage of persons aged 60 to 64 (7.3% compared to 6.3%)
  • A larger percentage of persons aged 65 to 69 (7.0% compared to 6.1%)
  • A smaller percentage of persons aged 50 to 54 (6.1% compared to 6.7%)
  • A smaller percentage of persons aged 15 to 19 (5.7% compared to 6.2%)

Emerging groups

From 2011 to 2016, Happy Valley's population decreased by 109 people (1.0%). This represents an average annual population change of -0.19% per year over the period.

The largest changes in age structure in this area between 2011 and 2016 were in the age groups:

  • 65 to 69 (+361 persons)
  • 50 to 54 (-154 persons)
  • 15 to 19 (-142 persons)
  • 55 to 59 (-102 persons)