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 Stretton, accounting for 19.9% (934 people). This share was lower than Brisbane (C) (22.1%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 128 people and 2.4 percentage points.
Section overview
Age structure - Service age groups
Stretton - Total persons (Usual residence)
This table summarises service age groups for Stretton in 2021 for persons, with comparison against Brisbane (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Stretton, with comparison markers for Brisbane (C).
Babies and pre-schoolers (0 to 4)
2021 count
258
% of total
5.5%
Change from 2016
-0.2pp
258
5.5%
-0.2pp
Primary schoolers (5 to 11)
2021 count
460
% of total
9.8%
Change from 2016
+1.0pp
460
9.8%
+1.0pp
Secondary schoolers (12 to 17)
2021 count
428
% of total
9.1%
Change from 2016
+0.4pp
428
9.1%
+0.4pp
Tertiary education and independence (18 to 24)
2021 count
434
% of total
9.3%
Change from 2016
-1.9pp
434
9.3%
-1.9pp
Young workforce (25 to 34)
2021 count
575
% of total
12.3%
Change from 2016
-2.4pp
575
12.3%
-2.4pp
Parents and homebuilders (35 to 49)
2021 count
934
% of total
19.9%
Change from 2016
+0.5pp
934
19.9%
+0.5pp
Older workers and pre-retirees (50 to 59)
2021 count
623
% of total
13.3%
Change from 2016
-1.4pp
623
13.3%
-1.4pp
Empty nesters and retirees (60 to 69)
2021 count
588
% of total
12.5%
Change from 2016
+1.3pp
588
12.5%
+1.3pp
Seniors (70 to 84)
2021 count
364
% of total
7.8%
Change from 2016
+2.4pp
364
7.8%
+2.4pp
Elderly aged (85 and over)
2021 count
44
% of total
0.9%
Change from 2016
+0.4pp
44
0.9%
+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)
+12
-0.2pp
Primary schoolers (5 to 11)
+78
+1.0pp
Secondary schoolers (12 to 17)
+53
+0.4pp
Tertiary education and independence (18 to 24)
-51
-1.9pp
Young workforce (25 to 34)
-62
-2.4pp
Parents and homebuilders (35 to 49)
+95
+0.5pp
Older workers and pre-retirees (50 to 59)
-12
-1.4pp
Empty nesters and retirees (60 to 69)
+102
+1.3pp
Seniors (70 to 84)
+128
+2.4pp
Elderly aged (85 and over)
+21
+0.4pp
Data table
Service age groups for Stretton. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Brisbane (C)% | Count | % | Brisbane (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 258 | 5.5% | 5.5% | 246 | 5.7% | 6.0% | +12 | -0.2pp |
| Primary schoolers (5 to 11) | 460 | 9.8% | 8.4% | 382 | 8.8% | 8.3% | +78 | +1.0pp |
| Secondary schoolers (12 to 17) | 428 | 9.1% | 7.0% | 375 | 8.7% | 6.7% | +53 | +0.4pp |
| Tertiary education and independence (18 to 24) | 434 | 9.3% | 10.4% | 485 | 11.2% | 11.5% | -51 | -1.9pp |
| Young workforce (25 to 34) | 575 | 12.3% | 16.6% | 637 | 14.7% | 17.3% | -62 | -2.4pp |
| Parents and homebuilders (35 to 49) | 934 | 19.9% | 22.1% | 839 | 19.4% | 21.5% | +95 | +0.5pp |
| Older workers and pre-retirees (50 to 59) | 623 | 13.3% | 11.8% | 635 | 14.7% | 11.6% | -12 | -1.4pp |
| Empty nesters and retirees (60 to 69) | 588 | 12.5% | 8.8% | 486 | 11.2% | 8.6% | +102 | +1.3pp |
| Seniors (70 to 84) | 364 | 7.8% | 7.7% | 236 | 5.4% | 6.6% | +128 | +2.4pp |
| Elderly aged (85 and over) | 44 | 0.9% | 1.8% | 23 | 0.5% | 1.8% | +21 | +0.4pp |
| Total | 4,686 | 100.0% | 100.0% | 4,334 | 100.0% | 100.0% | +352 | 0.0pp |