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, Young workforce (25 to 34) was the most common category among residents in Leederville, accounting for 26.5% (978 people). This share was higher than Vincent (C) (22.7%). Since 2016, the biggest change was in Secondary schoolers (12 to 17), which decreased by 876 people and 8.3 percentage points.
Section overview
Age structure - Service age groups
Leederville - Total persons (Usual residence)
This table summarises service age groups for Leederville in 2021 for persons, with comparison against Vincent (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Leederville, with comparison markers for Vincent (C).
Babies and pre-schoolers (0 to 4)
2021 count
188
% of total
5.1%
Change from 2016
+0.2pp
188
5.1%
+0.2pp
Primary schoolers (5 to 11)
2021 count
166
% of total
4.5%
Change from 2016
-5.3pp
166
4.5%
-5.3pp
Secondary schoolers (12 to 17)
2021 count
141
% of total
3.8%
Change from 2016
-8.3pp
141
3.8%
-8.3pp
Tertiary education and independence (18 to 24)
2021 count
337
% of total
9.1%
Change from 2016
+1.7pp
337
9.1%
+1.7pp
Young workforce (25 to 34)
2021 count
978
% of total
26.5%
Change from 2016
+19.3pp
978
26.5%
+19.3pp
Parents and homebuilders (35 to 49)
2021 count
823
% of total
22.3%
Change from 2016
+3.1pp
823
22.3%
+3.1pp
Older workers and pre-retirees (50 to 59)
2021 count
383
% of total
10.4%
Change from 2016
-3.4pp
383
10.4%
-3.4pp
Empty nesters and retirees (60 to 69)
2021 count
287
% of total
7.8%
Change from 2016
-4.6pp
287
7.8%
-4.6pp
Seniors (70 to 84)
2021 count
260
% of total
7.1%
Change from 2016
-3.5pp
260
7.1%
-3.5pp
Elderly aged (85 and over)
2021 count
135
% of total
3.7%
Change from 2016
+1.5pp
135
3.7%
+1.5pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-226
+0.2pp
Primary schoolers (5 to 11)
-665
-5.3pp
Secondary schoolers (12 to 17)
-876
-8.3pp
Tertiary education and independence (18 to 24)
-288
+1.7pp
Young workforce (25 to 34)
+371
+19.3pp
Parents and homebuilders (35 to 49)
-799
+3.1pp
Older workers and pre-retirees (50 to 59)
-782
-3.4pp
Empty nesters and retirees (60 to 69)
-755
-4.6pp
Seniors (70 to 84)
-637
-3.5pp
Elderly aged (85 and over)
-49
+1.5pp
Data table
Service age groups for Leederville. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Vincent (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Vincent (C)% | Count | % | Vincent (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 188 | 5.1% | 5.2% | 414 | 4.9% | 5.5% | -226 | +0.2pp |
| Primary schoolers (5 to 11) | 166 | 4.5% | 6.6% | 831 | 9.8% | 6.6% | -665 | -5.3pp |
| Secondary schoolers (12 to 17) | 141 | 3.8% | 4.6% | 1,017 | 12.1% | 4.1% | -876 | -8.3pp |
| Tertiary education and independence (18 to 24) | 337 | 9.1% | 8.5% | 625 | 7.4% | 8.9% | -288 | +1.7pp |
| Young workforce (25 to 34) | 978 | 26.5% | 22.7% | 607 | 7.2% | 25.6% | +371 | +19.3pp |
| Parents and homebuilders (35 to 49) | 823 | 22.3% | 23.7% | 1,622 | 19.2% | 22.9% | -799 | +3.1pp |
| Older workers and pre-retirees (50 to 59) | 383 | 10.4% | 11.9% | 1,165 | 13.8% | 11.3% | -782 | -3.4pp |
| Empty nesters and retirees (60 to 69) | 287 | 7.8% | 8.7% | 1,042 | 12.4% | 7.7% | -755 | -4.6pp |
| Seniors (70 to 84) | 260 | 7.1% | 6.3% | 897 | 10.6% | 5.4% | -637 | -3.5pp |
| Elderly aged (85 and over) | 135 | 3.7% | 1.8% | 184 | 2.2% | 2.0% | -49 | +1.5pp |
| Total | 3,686 | 100.0% | 100.0% | 8,437 | 100.0% | 100.0% | -4,751 | 0.0pp |