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 Glengowrie, accounting for 18.6% (1,070 people). This share was lower than Marion (C) (20.2%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 161 people and 1.9 percentage points.
Section overview
Age structure - Service age groups
Glengowrie - Total persons (Usual residence)
This table summarises service age groups for Glengowrie in 2021 for persons, with comparison against Marion (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Glengowrie, with comparison markers for Marion (C).
Babies and pre-schoolers (0 to 4)
2021 count
288
% of total
5.0%
Change from 2016
-0.1pp
288
5.0%
-0.1pp
Primary schoolers (5 to 11)
2021 count
451
% of total
7.8%
Change from 2016
-0.1pp
451
7.8%
-0.1pp
Secondary schoolers (12 to 17)
2021 count
352
% of total
6.1%
Change from 2016
0.0pp
352
6.1%
0.0pp
Tertiary education and independence (18 to 24)
2021 count
452
% of total
7.8%
Change from 2016
-0.2pp
452
7.8%
-0.2pp
Young workforce (25 to 34)
2021 count
618
% of total
10.7%
Change from 2016
-1.2pp
618
10.7%
-1.2pp
Parents and homebuilders (35 to 49)
2021 count
1,070
% of total
18.6%
Change from 2016
-0.5pp
1,070
18.6%
-0.5pp
Older workers and pre-retirees (50 to 59)
2021 count
721
% of total
12.5%
Change from 2016
-0.4pp
721
12.5%
-0.4pp
Empty nesters and retirees (60 to 69)
2021 count
727
% of total
12.6%
Change from 2016
+0.6pp
727
12.6%
+0.6pp
Seniors (70 to 84)
2021 count
762
% of total
13.2%
Change from 2016
+1.9pp
762
13.2%
+1.9pp
Elderly aged (85 and over)
2021 count
353
% of total
6.1%
Change from 2016
+0.4pp
353
6.1%
+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)
+15
-0.1pp
Primary schoolers (5 to 11)
+31
-0.1pp
Secondary schoolers (12 to 17)
+26
0.0pp
Tertiary education and independence (18 to 24)
+25
-0.2pp
Young workforce (25 to 34)
-16
-1.2pp
Parents and homebuilders (35 to 49)
+50
-0.5pp
Older workers and pre-retirees (50 to 59)
+31
-0.4pp
Empty nesters and retirees (60 to 69)
+84
+0.6pp
Seniors (70 to 84)
+161
+1.9pp
Elderly aged (85 and over)
+47
+0.4pp
Data table
Service age groups for Glengowrie. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Marion (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Marion (C)% | Count | % | Marion (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 288 | 5.0% | 5.4% | 273 | 5.1% | 5.9% | +15 | -0.1pp |
| Primary schoolers (5 to 11) | 451 | 7.8% | 7.7% | 420 | 7.9% | 7.4% | +31 | -0.1pp |
| Secondary schoolers (12 to 17) | 352 | 6.1% | 6.1% | 326 | 6.1% | 6.1% | +26 | 0.0pp |
| Tertiary education and independence (18 to 24) | 452 | 7.8% | 8.8% | 427 | 8.0% | 9.6% | +25 | -0.2pp |
| Young workforce (25 to 34) | 618 | 10.7% | 15.1% | 634 | 11.9% | 14.8% | -16 | -1.2pp |
| Parents and homebuilders (35 to 49) | 1,070 | 18.6% | 20.2% | 1,020 | 19.1% | 19.5% | +50 | -0.5pp |
| Older workers and pre-retirees (50 to 59) | 721 | 12.5% | 11.7% | 690 | 12.9% | 13.0% | +31 | -0.4pp |
| Empty nesters and retirees (60 to 69) | 727 | 12.6% | 11.8% | 643 | 12.0% | 11.4% | +84 | +0.6pp |
| Seniors (70 to 84) | 762 | 13.2% | 10.4% | 601 | 11.3% | 9.1% | +161 | +1.9pp |
| Elderly aged (85 and over) | 353 | 6.1% | 2.9% | 306 | 5.7% | 3.1% | +47 | +0.4pp |
| Total | 5,767 | 100.0% | 100.0% | 5,341 | 100.0% | 100.0% | +426 | 0.0pp |