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, Empty nesters and retirees (60 to 69) was the most common category among residents in Avoca Dell, accounting for 21.1% (35 people). This share was higher than Murray Bridge (RC) (12.9%). Since 2016, the biggest change was in Empty nesters and retirees (60 to 69), which increased by 32 people and 19 percentage points.
Section overview
Age structure - Service age groups
Avoca Dell - Total persons (Usual residence)
This table summarises service age groups for Avoca Dell in 2021 for persons, with comparison against Murray Bridge (RC) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Avoca Dell, with comparison markers for Murray Bridge (RC).
Babies and pre-schoolers (0 to 4)
2021 count
9
% of total
5.4%
Change from 2016
-1.6pp
9
5.4%
-1.6pp
Primary schoolers (5 to 11)
2021 count
23
% of total
13.9%
Change from 2016
+6.9pp
23
13.9%
+6.9pp
Secondary schoolers (12 to 17)
2021 count
23
% of total
13.9%
Change from 2016
+2.0pp
23
13.9%
+2.0pp
Tertiary education and independence (18 to 24)
2021 count
4
% of total
2.4%
Change from 2016
-3.9pp
4
2.4%
-3.9pp
Young workforce (25 to 34)
2021 count
19
% of total
11.4%
Change from 2016
+3.0pp
19
11.4%
+3.0pp
Parents and homebuilders (35 to 49)
2021 count
22
% of total
13.3%
Change from 2016
-6.3pp
22
13.3%
-6.3pp
Older workers and pre-retirees (50 to 59)
2021 count
27
% of total
16.3%
Change from 2016
+3.7pp
27
16.3%
+3.7pp
Empty nesters and retirees (60 to 69)
2021 count
35
% of total
21.1%
Change from 2016
+19.0pp
35
21.1%
+19.0pp
Seniors (70 to 84)
2021 count
0
% of total
0.0%
Change from 2016
-4.9pp
0
0.0%
-4.9pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
-2.1pp
0
0.0%
-2.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-1
-1.6pp
Primary schoolers (5 to 11)
+13
+6.9pp
Secondary schoolers (12 to 17)
+6
+2.0pp
Tertiary education and independence (18 to 24)
-5
-3.9pp
Young workforce (25 to 34)
+7
+3.0pp
Parents and homebuilders (35 to 49)
-6
-6.3pp
Older workers and pre-retirees (50 to 59)
+9
+3.7pp
Empty nesters and retirees (60 to 69)
+32
+19.0pp
Seniors (70 to 84)
-7
-4.9pp
Elderly aged (85 and over)
-3
-2.1pp
Data table
Service age groups for Avoca Dell. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Murray Bridge (RC).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Murray Bridge (RC)% | Count | % | Murray Bridge (RC)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 9 | 5.4% | 5.3% | 10 | 7.0% | 5.6% | -1 | -1.6pp |
| Primary schoolers (5 to 11) | 23 | 13.9% | 7.9% | 10 | 7.0% | 8.5% | +13 | +6.9pp |
| Secondary schoolers (12 to 17) | 23 | 13.9% | 7.2% | 17 | 11.9% | 7.1% | +6 | +2.0pp |
| Tertiary education and independence (18 to 24) | 4 | 2.4% | 7.6% | 9 | 6.3% | 9.3% | -5 | -3.9pp |
| Young workforce (25 to 34) | 19 | 11.4% | 12.1% | 12 | 8.4% | 12.9% | +7 | +3.0pp |
| Parents and homebuilders (35 to 49) | 22 | 13.3% | 16.7% | 28 | 19.6% | 17.9% | -6 | -6.3pp |
| Older workers and pre-retirees (50 to 59) | 27 | 16.3% | 13.7% | 18 | 12.6% | 13.1% | +9 | +3.7pp |
| Empty nesters and retirees (60 to 69) | 35 | 21.1% | 12.9% | 3 | 2.1% | 11.9% | +32 | +19.0pp |
| Seniors (70 to 84) | 0 | 0.0% | 13.4% | 7 | 4.9% | 11.3% | -7 | -4.9pp |
| Elderly aged (85 and over) | 0 | 0.0% | 2.8% | 3 | 2.1% | 2.4% | -3 | -2.1pp |
| Total | 166 | 100.0% | 100.0% | 143 | 100.0% | 100.0% | +23 | 0.0pp |