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 Clarence Park, accounting for 21.5% (571 people). This share was higher than Unley (C) (19.6%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 89 people and 3.1 percentage points.
Section overview
Age structure - Service age groups
Clarence Park - Total persons (Usual residence)
This table summarises service age groups for Clarence Park in 2021 for persons, with comparison against Unley (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Clarence Park, with comparison markers for Unley (C).
Babies and pre-schoolers (0 to 4)
2021 count
152
% of total
5.7%
Change from 2016
+0.6pp
152
5.7%
+0.6pp
Primary schoolers (5 to 11)
2021 count
192
% of total
7.2%
Change from 2016
-1.2pp
192
7.2%
-1.2pp
Secondary schoolers (12 to 17)
2021 count
167
% of total
6.3%
Change from 2016
-0.2pp
167
6.3%
-0.2pp
Tertiary education and independence (18 to 24)
2021 count
268
% of total
10.1%
Change from 2016
+0.4pp
268
10.1%
+0.4pp
Young workforce (25 to 34)
2021 count
363
% of total
13.7%
Change from 2016
-1.0pp
363
13.7%
-1.0pp
Parents and homebuilders (35 to 49)
2021 count
571
% of total
21.5%
Change from 2016
+0.4pp
571
21.5%
+0.4pp
Older workers and pre-retirees (50 to 59)
2021 count
327
% of total
12.3%
Change from 2016
-1.0pp
327
12.3%
-1.0pp
Empty nesters and retirees (60 to 69)
2021 count
305
% of total
11.5%
Change from 2016
0.0pp
305
11.5%
0.0pp
Seniors (70 to 84)
2021 count
270
% of total
10.2%
Change from 2016
+3.1pp
270
10.2%
+3.1pp
Elderly aged (85 and over)
2021 count
40
% of total
1.5%
Change from 2016
-0.5pp
40
1.5%
-0.5pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+23
+0.6pp
Primary schoolers (5 to 11)
-22
-1.2pp
Secondary schoolers (12 to 17)
+3
-0.2pp
Tertiary education and independence (18 to 24)
+21
+0.4pp
Young workforce (25 to 34)
-11
-1.0pp
Parents and homebuilders (35 to 49)
+34
+0.4pp
Older workers and pre-retirees (50 to 59)
-12
-1.0pp
Empty nesters and retirees (60 to 69)
+14
0.0pp
Seniors (70 to 84)
+89
+3.1pp
Elderly aged (85 and over)
-11
-0.5pp
Data table
Service age groups for Clarence Park. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Unley (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Unley (C)% | Count | % | Unley (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 152 | 5.7% | 4.3% | 129 | 5.1% | 4.7% | +23 | +0.6pp |
| Primary schoolers (5 to 11) | 192 | 7.2% | 7.6% | 214 | 8.4% | 7.9% | -22 | -1.2pp |
| Secondary schoolers (12 to 17) | 167 | 6.3% | 6.9% | 164 | 6.5% | 6.6% | +3 | -0.2pp |
| Tertiary education and independence (18 to 24) | 268 | 10.1% | 8.2% | 247 | 9.7% | 9.4% | +21 | +0.4pp |
| Young workforce (25 to 34) | 363 | 13.7% | 12.4% | 374 | 14.7% | 13.5% | -11 | -1.0pp |
| Parents and homebuilders (35 to 49) | 571 | 21.5% | 19.6% | 537 | 21.1% | 19.8% | +34 | +0.4pp |
| Older workers and pre-retirees (50 to 59) | 327 | 12.3% | 12.6% | 339 | 13.3% | 12.7% | -12 | -1.0pp |
| Empty nesters and retirees (60 to 69) | 305 | 11.5% | 11.9% | 291 | 11.5% | 11.9% | +14 | 0.0pp |
| Seniors (70 to 84) | 270 | 10.2% | 12.2% | 181 | 7.1% | 9.2% | +89 | +3.1pp |
| Elderly aged (85 and over) | 40 | 1.5% | 4.1% | 51 | 2.0% | 4.3% | -11 | -0.5pp |
| Total | 2,658 | 100.0% | 100.0% | 2,540 | 100.0% | 100.0% | +118 | 0.0pp |