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 Murray Bridge North, accounting for 23.9% (34 people). This share was higher than Murray Bridge (RC) (16.7%). Since 2016, the biggest change was in Secondary schoolers (12 to 17), which decreased by 8 people and 5.8 percentage points.
Section overview
Age structure - Service age groups
Murray Bridge North - Total persons (Usual residence)
This table summarises service age groups for Murray Bridge North 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 Murray Bridge North, with comparison markers for Murray Bridge (RC).
Babies and pre-schoolers (0 to 4)
2021 count
3
% of total
2.1%
Change from 2016
+2.1pp
3
2.1%
+2.1pp
Primary schoolers (5 to 11)
2021 count
8
% of total
5.6%
Change from 2016
-3.7pp
8
5.6%
-3.7pp
Secondary schoolers (12 to 17)
2021 count
8
% of total
5.6%
Change from 2016
-5.8pp
8
5.6%
-5.8pp
Tertiary education and independence (18 to 24)
2021 count
10
% of total
7.0%
Change from 2016
+2.0pp
10
7.0%
+2.0pp
Young workforce (25 to 34)
2021 count
0
% of total
0.0%
Change from 2016
-3.6pp
0
0.0%
-3.6pp
Parents and homebuilders (35 to 49)
2021 count
34
% of total
23.9%
Change from 2016
-1.1pp
34
23.9%
-1.1pp
Older workers and pre-retirees (50 to 59)
2021 count
23
% of total
16.2%
Change from 2016
-0.9pp
23
16.2%
-0.9pp
Empty nesters and retirees (60 to 69)
2021 count
4
% of total
2.8%
Change from 2016
-5.8pp
4
2.8%
-5.8pp
Seniors (70 to 84)
2021 count
24
% of total
16.9%
Change from 2016
-0.2pp
24
16.9%
-0.2pp
Elderly aged (85 and over)
2021 count
5
% of total
3.5%
Change from 2016
+3.5pp
5
3.5%
+3.5pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+3
+2.1pp
Primary schoolers (5 to 11)
-5
-3.7pp
Secondary schoolers (12 to 17)
-8
-5.8pp
Tertiary education and independence (18 to 24)
+3
+2.0pp
Young workforce (25 to 34)
-5
-3.6pp
Parents and homebuilders (35 to 49)
-1
-1.1pp
Older workers and pre-retirees (50 to 59)
-1
-0.9pp
Empty nesters and retirees (60 to 69)
-8
-5.8pp
Seniors (70 to 84)
0
-0.2pp
Elderly aged (85 and over)
+5
+3.5pp
Data table
Service age groups for Murray Bridge North. 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) | 3 | 2.1% | 5.3% | 0 | 0.0% | 5.6% | +3 | +2.1pp |
| Primary schoolers (5 to 11) | 8 | 5.6% | 7.9% | 13 | 9.3% | 8.5% | -5 | -3.7pp |
| Secondary schoolers (12 to 17) | 8 | 5.6% | 7.2% | 16 | 11.4% | 7.1% | -8 | -5.8pp |
| Tertiary education and independence (18 to 24) | 10 | 7.0% | 7.6% | 7 | 5.0% | 9.3% | +3 | +2.0pp |
| Young workforce (25 to 34) | 0 | 0.0% | 12.1% | 5 | 3.6% | 12.9% | -5 | -3.6pp |
| Parents and homebuilders (35 to 49) | 34 | 23.9% | 16.7% | 35 | 25.0% | 17.9% | -1 | -1.1pp |
| Older workers and pre-retirees (50 to 59) | 23 | 16.2% | 13.7% | 24 | 17.1% | 13.1% | -1 | -0.9pp |
| Empty nesters and retirees (60 to 69) | 4 | 2.8% | 12.9% | 12 | 8.6% | 11.9% | -8 | -5.8pp |
| Seniors (70 to 84) | 24 | 16.9% | 13.4% | 24 | 17.1% | 11.3% | 0 | -0.2pp |
| Elderly aged (85 and over) | 5 | 3.5% | 2.8% | 0 | 0.0% | 2.4% | +5 | +3.5pp |
| Total | 142 | 100.0% | 100.0% | 140 | 100.0% | 100.0% | +2 | 0.0pp |