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 Hyde Park (SA), accounting for 17.5% (291 people). This share was lower than Unley (C) (19.6%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 77 people and 4.7 percentage points.
Section overview
Age structure - Service age groups
Hyde Park (SA) - Total persons (Usual residence)
This table summarises service age groups for Hyde Park (SA) in 2021 for persons, with comparison against Unley (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Hyde Park (SA), with comparison markers for Unley (C).
Babies and pre-schoolers (0 to 4)
2021 count
58
% of total
3.5%
Change from 2016
-1.8pp
58
3.5%
-1.8pp
Primary schoolers (5 to 11)
2021 count
122
% of total
7.3%
Change from 2016
-1.2pp
122
7.3%
-1.2pp
Secondary schoolers (12 to 17)
2021 count
136
% of total
8.2%
Change from 2016
-0.6pp
136
8.2%
-0.6pp
Tertiary education and independence (18 to 24)
2021 count
123
% of total
7.4%
Change from 2016
-1.9pp
123
7.4%
-1.9pp
Young workforce (25 to 34)
2021 count
179
% of total
10.8%
Change from 2016
+1.6pp
179
10.8%
+1.6pp
Parents and homebuilders (35 to 49)
2021 count
291
% of total
17.5%
Change from 2016
-2.6pp
291
17.5%
-2.6pp
Older workers and pre-retirees (50 to 59)
2021 count
245
% of total
14.8%
Change from 2016
+1.8pp
245
14.8%
+1.8pp
Empty nesters and retirees (60 to 69)
2021 count
234
% of total
14.1%
Change from 2016
+0.3pp
234
14.1%
+0.3pp
Seniors (70 to 84)
2021 count
221
% of total
13.3%
Change from 2016
+4.7pp
221
13.3%
+4.7pp
Elderly aged (85 and over)
2021 count
29
% of total
1.7%
Change from 2016
0.0pp
29
1.7%
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)
-31
-1.8pp
Primary schoolers (5 to 11)
-19
-1.2pp
Secondary schoolers (12 to 17)
-10
-0.6pp
Tertiary education and independence (18 to 24)
-32
-1.9pp
Young workforce (25 to 34)
+26
+1.6pp
Parents and homebuilders (35 to 49)
-44
-2.6pp
Older workers and pre-retirees (50 to 59)
+28
+1.8pp
Empty nesters and retirees (60 to 69)
+5
+0.3pp
Seniors (70 to 84)
+77
+4.7pp
Elderly aged (85 and over)
+1
0.0pp
Data table
Service age groups for Hyde Park (SA). 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) | 58 | 3.5% | 4.3% | 89 | 5.3% | 4.7% | -31 | -1.8pp |
| Primary schoolers (5 to 11) | 122 | 7.3% | 7.6% | 141 | 8.5% | 7.9% | -19 | -1.2pp |
| Secondary schoolers (12 to 17) | 136 | 8.2% | 6.9% | 146 | 8.8% | 6.6% | -10 | -0.6pp |
| Tertiary education and independence (18 to 24) | 123 | 7.4% | 8.2% | 155 | 9.3% | 9.4% | -32 | -1.9pp |
| Young workforce (25 to 34) | 179 | 10.8% | 12.4% | 153 | 9.2% | 13.5% | +26 | +1.6pp |
| Parents and homebuilders (35 to 49) | 291 | 17.5% | 19.6% | 335 | 20.1% | 19.8% | -44 | -2.6pp |
| Older workers and pre-retirees (50 to 59) | 245 | 14.8% | 12.6% | 217 | 13.0% | 12.7% | +28 | +1.8pp |
| Empty nesters and retirees (60 to 69) | 234 | 14.1% | 11.9% | 229 | 13.8% | 11.9% | +5 | +0.3pp |
| Seniors (70 to 84) | 221 | 13.3% | 12.2% | 144 | 8.6% | 9.2% | +77 | +4.7pp |
| Elderly aged (85 and over) | 29 | 1.7% | 4.1% | 28 | 1.7% | 4.3% | +1 | 0.0pp |
| Total | 1,660 | 100.0% | 100.0% | 1,665 | 100.0% | 100.0% | -5 | 0.0pp |