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 Glenden, accounting for 27.3% (130 people). This share was higher than Isaac (R) (23.7%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which decreased by 443 people, while its share rose by 6.7 percentage points.
Section overview
Age structure - Service age groups
Glenden - Total persons (Usual residence)
This table summarises service age groups for Glenden in 2021 for persons, with comparison against Isaac (R) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Glenden, with comparison markers for Isaac (R).
Babies and pre-schoolers (0 to 4)
2021 count
37
% of total
7.8%
Change from 2016
-2.0pp
37
7.8%
-2.0pp
Primary schoolers (5 to 11)
2021 count
57
% of total
11.9%
Change from 2016
-0.5pp
57
11.9%
-0.5pp
Secondary schoolers (12 to 17)
2021 count
31
% of total
6.5%
Change from 2016
-1.7pp
31
6.5%
-1.7pp
Tertiary education and independence (18 to 24)
2021 count
30
% of total
6.3%
Change from 2016
-5.9pp
30
6.3%
-5.9pp
Young workforce (25 to 34)
2021 count
91
% of total
19.1%
Change from 2016
+0.2pp
91
19.1%
+0.2pp
Parents and homebuilders (35 to 49)
2021 count
130
% of total
27.3%
Change from 2016
+6.7pp
130
27.3%
+6.7pp
Older workers and pre-retirees (50 to 59)
2021 count
60
% of total
12.6%
Change from 2016
+3.3pp
60
12.6%
+3.3pp
Empty nesters and retirees (60 to 69)
2021 count
18
% of total
3.8%
Change from 2016
-0.4pp
18
3.8%
-0.4pp
Seniors (70 to 84)
2021 count
0
% of total
0.0%
Change from 2016
-3.0pp
0
0.0%
-3.0pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
-1.1pp
0
0.0%
-1.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-236
-2.0pp
Primary schoolers (5 to 11)
-288
-0.5pp
Secondary schoolers (12 to 17)
-197
-1.7pp
Tertiary education and independence (18 to 24)
-310
-5.9pp
Young workforce (25 to 34)
-434
+0.2pp
Parents and homebuilders (35 to 49)
-443
+6.7pp
Older workers and pre-retirees (50 to 59)
-198
+3.3pp
Empty nesters and retirees (60 to 69)
-99
-0.4pp
Seniors (70 to 84)
-82
-3.0pp
Elderly aged (85 and over)
-30
-1.1pp
Data table
Service age groups for Glenden. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Isaac (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Isaac (R)% | Count | % | Isaac (R)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 37 | 7.8% | 7.2% | 273 | 9.8% | 9.7% | -236 | -2.0pp |
| Primary schoolers (5 to 11) | 57 | 11.9% | 10.7% | 345 | 12.4% | 12.1% | -288 | -0.5pp |
| Secondary schoolers (12 to 17) | 31 | 6.5% | 6.3% | 228 | 8.2% | 6.7% | -197 | -1.7pp |
| Tertiary education and independence (18 to 24) | 30 | 6.3% | 8.8% | 340 | 12.2% | 7.8% | -310 | -5.9pp |
| Young workforce (25 to 34) | 91 | 19.1% | 18.8% | 525 | 18.9% | 19.1% | -434 | +0.2pp |
| Parents and homebuilders (35 to 49) | 130 | 27.3% | 23.7% | 573 | 20.6% | 23.2% | -443 | +6.7pp |
| Older workers and pre-retirees (50 to 59) | 60 | 12.6% | 13.2% | 258 | 9.3% | 12.2% | -198 | +3.3pp |
| Empty nesters and retirees (60 to 69) | 18 | 3.8% | 7.4% | 117 | 4.2% | 6.3% | -99 | -0.4pp |
| Seniors (70 to 84) | 0 | 0.0% | 3.6% | 82 | 3.0% | 2.6% | -82 | -3.0pp |
| Elderly aged (85 and over) | 0 | 0.0% | 0.5% | 30 | 1.1% | 0.4% | -30 | -1.1pp |
| Total | 477 | 100.0% | 100.0% | 2,778 | 100.0% | 100.0% | -2,301 | 0.0pp |