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 Urrbrae, accounting for 20% (214 people). This share was similar to Mitcham (C) (19.9%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 41 people and 2.1 percentage points.
Section overview
Age structure - Service age groups
Urrbrae - Total persons (Usual residence)
This table summarises service age groups for Urrbrae in 2021 for persons, with comparison against Mitcham (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Urrbrae, with comparison markers for Mitcham (C).
Babies and pre-schoolers (0 to 4)
2021 count
49
% of total
4.6%
Change from 2016
+1.2pp
49
4.6%
+1.2pp
Primary schoolers (5 to 11)
2021 count
103
% of total
9.6%
Change from 2016
+1.9pp
103
9.6%
+1.9pp
Secondary schoolers (12 to 17)
2021 count
103
% of total
9.6%
Change from 2016
+1.5pp
103
9.6%
+1.5pp
Tertiary education and independence (18 to 24)
2021 count
92
% of total
8.6%
Change from 2016
-2.3pp
92
8.6%
-2.3pp
Young workforce (25 to 34)
2021 count
85
% of total
7.9%
Change from 2016
-0.3pp
85
7.9%
-0.3pp
Parents and homebuilders (35 to 49)
2021 count
214
% of total
20.0%
Change from 2016
+2.1pp
214
20.0%
+2.1pp
Older workers and pre-retirees (50 to 59)
2021 count
155
% of total
14.5%
Change from 2016
-0.9pp
155
14.5%
-0.9pp
Empty nesters and retirees (60 to 69)
2021 count
143
% of total
13.4%
Change from 2016
+1.1pp
143
13.4%
+1.1pp
Seniors (70 to 84)
2021 count
133
% of total
12.4%
Change from 2016
-2.0pp
133
12.4%
-2.0pp
Elderly aged (85 and over)
2021 count
27
% of total
2.5%
Change from 2016
+0.4pp
27
2.5%
+0.4pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+16
+1.2pp
Primary schoolers (5 to 11)
+29
+1.9pp
Secondary schoolers (12 to 17)
+25
+1.5pp
Tertiary education and independence (18 to 24)
-13
-2.3pp
Young workforce (25 to 34)
+6
-0.3pp
Parents and homebuilders (35 to 49)
+41
+2.1pp
Older workers and pre-retirees (50 to 59)
+6
-0.9pp
Empty nesters and retirees (60 to 69)
+24
+1.1pp
Seniors (70 to 84)
-6
-2.0pp
Elderly aged (85 and over)
+7
+0.4pp
Data table
Service age groups for Urrbrae. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Mitcham (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mitcham (C)% | Count | % | Mitcham (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 49 | 4.6% | 4.9% | 33 | 3.4% | 5.3% | +16 | +1.2pp |
| Primary schoolers (5 to 11) | 103 | 9.6% | 8.4% | 74 | 7.7% | 8.6% | +29 | +1.9pp |
| Secondary schoolers (12 to 17) | 103 | 9.6% | 7.7% | 78 | 8.1% | 7.5% | +25 | +1.5pp |
| Tertiary education and independence (18 to 24) | 92 | 8.6% | 8.6% | 105 | 10.9% | 9.1% | -13 | -2.3pp |
| Young workforce (25 to 34) | 85 | 7.9% | 10.5% | 79 | 8.2% | 10.7% | +6 | -0.3pp |
| Parents and homebuilders (35 to 49) | 214 | 20.0% | 19.9% | 173 | 17.9% | 20.0% | +41 | +2.1pp |
| Older workers and pre-retirees (50 to 59) | 155 | 14.5% | 12.9% | 149 | 15.4% | 13.4% | +6 | -0.9pp |
| Empty nesters and retirees (60 to 69) | 143 | 13.4% | 11.5% | 119 | 12.3% | 11.5% | +24 | +1.1pp |
| Seniors (70 to 84) | 133 | 12.4% | 12.2% | 139 | 14.4% | 10.4% | -6 | -2.0pp |
| Elderly aged (85 and over) | 27 | 2.5% | 3.3% | 20 | 2.1% | 3.4% | +7 | +0.4pp |
| Total | 1,070 | 100.0% | 100.0% | 966 | 100.0% | 100.0% | +104 | 0.0pp |