Population
Service age groups
About this topic
Service age groups divide the population into broad life-stage bands such as children, young adults, working-age adults, and older people. The groupings are designed to reflect typical demand for age-based services and facilities rather than exact five-year cohorts.
This view is useful for planning childcare, schools, recreation, aged services, and other community infrastructure. It works best alongside five year age groups, household type, and dwelling data, which add more detail about who is living in an area and how needs may change over time.
Interpretation notes
- This is a derived grouping rather than a direct Census question, so the age bands are planning-oriented summaries built from standard age data.
- Percentages relate to the total population; use five year age groups when exact cohort detail matters.
Related topics
Key insight
In 2021, Parents and homebuilders (35 to 49) was the most common category among residents in Chandlers Hill, accounting for 19.1% (151 people). This share was similar to Onkaparinga (C) (19.2%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 142 people and 10.8 percentage points.
Section overview
Age structure - Service age groups
Chandlers Hill - Total persons (Usual residence)
This table summarises service age groups for Chandlers Hill in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Chandlers Hill, with comparison markers for Onkaparinga (C).
Babies and pre-schoolers (0 to 4)
2021 count
41
% of total
5.2%
Change from 2016
+5.2pp
41
5.2%
+5.2pp
Primary schoolers (5 to 11)
2021 count
67
% of total
8.5%
Change from 2016
+5.7pp
67
8.5%
+5.7pp
Secondary schoolers (12 to 17)
2021 count
65
% of total
8.2%
Change from 2016
-1.0pp
65
8.2%
-1.0pp
Tertiary education and independence (18 to 24)
2021 count
83
% of total
10.5%
Change from 2016
-2.3pp
83
10.5%
-2.3pp
Young workforce (25 to 34)
2021 count
51
% of total
6.4%
Change from 2016
-5.5pp
51
6.4%
-5.5pp
Parents and homebuilders (35 to 49)
2021 count
151
% of total
19.1%
Change from 2016
+10.8pp
151
19.1%
+10.8pp
Older workers and pre-retirees (50 to 59)
2021 count
148
% of total
18.7%
Change from 2016
+4.0pp
148
18.7%
+4.0pp
Empty nesters and retirees (60 to 69)
2021 count
105
% of total
13.3%
Change from 2016
+2.3pp
105
13.3%
+2.3pp
Seniors (70 to 84)
2021 count
66
% of total
8.3%
Change from 2016
-2.7pp
66
8.3%
-2.7pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+41
+5.2pp
Primary schoolers (5 to 11)
+64
+5.7pp
Secondary schoolers (12 to 17)
+55
-1.0pp
Tertiary education and independence (18 to 24)
+69
-2.3pp
Young workforce (25 to 34)
+38
-5.5pp
Parents and homebuilders (35 to 49)
+142
+10.8pp
Older workers and pre-retirees (50 to 59)
+132
+4.0pp
Empty nesters and retirees (60 to 69)
+93
+2.3pp
Seniors (70 to 84)
+54
-2.7pp
Elderly aged (85 and over)
0
0.0pp
Data table
Service age groups for Chandlers Hill. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Onkaparinga (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Onkaparinga (C)% | Count | % | Onkaparinga (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 41 | 5.2% | 5.4% | 0 | 0.0% | 6.2% | +41 | +5.2pp |
| Primary schoolers (5 to 11) | 67 | 8.5% | 8.6% | 3 | 2.8% | 8.9% | +64 | +5.7pp |
| Secondary schoolers (12 to 17) | 65 | 8.2% | 7.3% | 10 | 9.2% | 7.5% | +55 | -1.0pp |
| Tertiary education and independence (18 to 24) | 83 | 10.5% | 7.9% | 14 | 12.8% | 8.4% | +69 | -2.3pp |
| Young workforce (25 to 34) | 51 | 6.4% | 12.2% | 13 | 11.9% | 12.4% | +38 | -5.5pp |
| Parents and homebuilders (35 to 49) | 151 | 19.1% | 19.2% | 9 | 8.3% | 19.7% | +142 | +10.8pp |
| Older workers and pre-retirees (50 to 59) | 148 | 18.7% | 13.1% | 16 | 14.7% | 13.3% | +132 | +4.0pp |
| Empty nesters and retirees (60 to 69) | 105 | 13.3% | 12.3% | 12 | 11.0% | 12.4% | +93 | +2.3pp |
| Seniors (70 to 84) | 66 | 8.3% | 11.8% | 12 | 11.0% | 9.1% | +54 | -2.7pp |
| Elderly aged (85 and over) | 0 | 0.0% | 2.2% | 0 | 0.0% | 2.1% | 0 | 0.0pp |
| Total | 792 | 100.0% | 100.0% | 109 | 100.0% | 100.0% | +683 | 0.0pp |