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There were 169 people over the age of 85 living in Ridgehaven in 2011, with largest age group being 40 to 44 year olds.

The Age Structure of Ridgehaven provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Ridgehaven'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 Ridgehaven'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 last birthday)?'

Total population

Age structure - Five year age groups
Ridgehaven - Total persons (Usual residence)20112006Change
Five year age groups (years)Number%City of Tea Tree Gully %Number%City of Tea Tree Gully %2006 to 2011
0 to 42506.45.82276.15.8+23
5 to 91995.15.92105.76.5-11
10 to 142175.66.41975.37.0+20
15 to 191804.66.91885.17.2-8
20 to 242105.46.22376.46.8-27
25 to 292636.86.12055.55.8+58
30 to 342305.96.02978.06.6-67
35 to 392526.56.72556.97.4-3
40 to 442656.87.42236.07.6+42
45 to 492255.87.51875.07.6+38
50 to 542025.27.12205.97.3-18
55 to 592316.06.82617.07.2-30
60 to 642416.26.62005.45.4+41
65 to 692065.35.01975.33.8+9
70 to 742095.43.51714.62.9+38
75 to 791574.02.61634.42.4-6
80 to 841724.41.91383.71.7+34
85 and over1694.41.71363.71.1+33

Source: Australian Bureau of Statistics, Census of Population and Housing 2006 and 2011. Compiled and presented by .id , the population experts.

Age structure - five year age groups, 2011
Age structure - five year age groups, 2011 85 and over, City of Tea Tree Gully: 1.7% 80 to 84, City of Tea Tree Gully: 1.9% 75 to 79, City of Tea Tree Gully: 2.6% 70 to 74, City of Tea Tree Gully: 3.5% 65 to 69, City of Tea Tree Gully: 5.0% 60 to 64, City of Tea Tree Gully: 6.6% 55 to 59, City of Tea Tree Gully: 6.8% 50 to 54, City of Tea Tree Gully: 7.1% 45 to 49, City of Tea Tree Gully: 7.5% 40 to 44, City of Tea Tree Gully: 7.4% 35 to 39, City of Tea Tree Gully: 6.7% 30 to 34, City of Tea Tree Gully: 6.0% 25 to 29, City of Tea Tree Gully: 6.1% 20 to 24, City of Tea Tree Gully: 6.2% 15 to 19, City of Tea Tree Gully: 6.9% 10 to 14, City of Tea Tree Gully: 6.4% 5 to 9, City of Tea Tree Gully: 5.9% 0 to 4, City of Tea Tree Gully: 5.8% 85 and over, Ridgehaven: 4.4% 80 to 84, Ridgehaven: 4.4% 75 to 79, Ridgehaven: 4.0% 70 to 74, Ridgehaven: 5.4% 65 to 69, Ridgehaven: 5.3% 60 to 64, Ridgehaven: 6.2% 55 to 59, Ridgehaven: 6.0% 50 to 54, Ridgehaven: 5.2% 45 to 49, Ridgehaven: 5.8% 40 to 44, Ridgehaven: 6.8% 35 to 39, Ridgehaven: 6.5% 30 to 34, Ridgehaven: 5.9% 25 to 29, Ridgehaven: 6.8% 20 to 24, Ridgehaven: 5.4% 15 to 19, Ridgehaven: 4.6% 10 to 14, Ridgehaven: 5.6% 5 to 9, Ridgehaven: 5.1% 0 to 4, Ridgehaven: 6.4%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.
Change in age structure - five year age groups, 2006 to 2011
Change in age structure - five year age groups, 2006 to 2011 85 and over, Ridgehaven: +33 80 to 84, Ridgehaven: +34 75 to 79, Ridgehaven: -6 70 to 74, Ridgehaven: +38 65 to 69, Ridgehaven: +9 60 to 64, Ridgehaven: +41 55 to 59, Ridgehaven: -30 50 to 54, Ridgehaven: -18 45 to 49, Ridgehaven: +38 40 to 44, Ridgehaven: +42 35 to 39, Ridgehaven: -3 30 to 34, Ridgehaven: -67 25 to 29, Ridgehaven: +58 20 to 24, Ridgehaven: -27 15 to 19, Ridgehaven: -8 10 to 14, Ridgehaven: +20 5 to 9, Ridgehaven: -11 0 to 4, Ridgehaven: +23
Source: Australian Bureau of Statistics, Census of Population and Housing, 2006 and 2011 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.

Dominant groups

Analysis of the five year age groups of Ridgehaven in 2011 compared to the City of Tea Tree Gully 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, 17.2% of the population was aged between 0 and 15, and 23.5% were aged 65 years and over, compared with 18.0% and 14.8% respectively for the City of Tea Tree Gully.

The major differences between the age structure of Ridgehaven and the City of Tea Tree Gully were:

  • A larger percentage of persons aged 85 and over (4.4% compared to 1.7%)
  • A larger percentage of persons aged 80 to 84 (4.4% compared to 1.9%)
  • A smaller percentage of persons aged 15 to 19 (4.6% compared to 6.9%)
  • A smaller percentage of persons aged 50 to 54 (5.2% compared to 7.1%)

Emerging groups

From 2006 to 2011, Ridgehaven's population increased by 166 people (4.5%). This represents an average annual population change of 0.88% per year over the period.

The largest changes in age structure in this area between 2006 and 2011 were in the age groups:

  • 30 to 34 (-67 persons)
  • 25 to 29 (+58 persons)