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, Older workers and pre-retirees (50 to 59) was the most common category among residents in Sanderston, accounting for 19% (15 people). This share was higher than Mid Murray (DC) (16.5%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which decreased by 774 people and 3.8 percentage points.
Section overview
Age structure - Service age groups
Sanderston - Total persons (Usual residence)
This table summarises service age groups for Sanderston in 2021 for persons, with comparison against Mid Murray (DC) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Sanderston, with comparison markers for Mid Murray (DC).
Babies and pre-schoolers (0 to 4)
2021 count
0
% of total
0.0%
Change from 2016
-6.0pp
0
0.0%
-6.0pp
Primary schoolers (5 to 11)
2021 count
0
% of total
0.0%
Change from 2016
-9.0pp
0
0.0%
-9.0pp
Secondary schoolers (12 to 17)
2021 count
4
% of total
5.1%
Change from 2016
-1.4pp
4
5.1%
-1.4pp
Tertiary education and independence (18 to 24)
2021 count
0
% of total
0.0%
Change from 2016
-7.2pp
0
0.0%
-7.2pp
Young workforce (25 to 34)
2021 count
4
% of total
5.1%
Change from 2016
-8.2pp
4
5.1%
-8.2pp
Parents and homebuilders (35 to 49)
2021 count
11
% of total
13.9%
Change from 2016
-3.8pp
11
13.9%
-3.8pp
Older workers and pre-retirees (50 to 59)
2021 count
15
% of total
19.0%
Change from 2016
+7.5pp
15
19.0%
+7.5pp
Empty nesters and retirees (60 to 69)
2021 count
15
% of total
19.0%
Change from 2016
+6.4pp
15
19.0%
+6.4pp
Seniors (70 to 84)
2021 count
3
% of total
3.8%
Change from 2016
-8.6pp
3
3.8%
-8.6pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
-4.4pp
0
0.0%
-4.4pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-265
-6.0pp
Primary schoolers (5 to 11)
-399
-9.0pp
Secondary schoolers (12 to 17)
-285
-1.4pp
Tertiary education and independence (18 to 24)
-320
-7.2pp
Young workforce (25 to 34)
-587
-8.2pp
Parents and homebuilders (35 to 49)
-774
-3.8pp
Older workers and pre-retirees (50 to 59)
-494
+7.5pp
Empty nesters and retirees (60 to 69)
-544
+6.4pp
Seniors (70 to 84)
-547
-8.6pp
Elderly aged (85 and over)
-196
-4.4pp
Data table
Service age groups for Sanderston. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Mid Murray (DC).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mid Murray (DC)% | Count | % | Mid Murray (DC)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 0 | 0.0% | 3.6% | 265 | 6.0% | 4.1% | -265 | -6.0pp |
| Primary schoolers (5 to 11) | 0 | 0.0% | 6.2% | 399 | 9.0% | 6.3% | -399 | -9.0pp |
| Secondary schoolers (12 to 17) | 4 | 5.1% | 5.8% | 289 | 6.5% | 5.5% | -285 | -1.4pp |
| Tertiary education and independence (18 to 24) | 0 | 0.0% | 4.9% | 320 | 7.2% | 6.2% | -320 | -7.2pp |
| Young workforce (25 to 34) | 4 | 5.1% | 7.8% | 591 | 13.3% | 8.4% | -587 | -8.2pp |
| Parents and homebuilders (35 to 49) | 11 | 13.9% | 14.9% | 785 | 17.7% | 16.9% | -774 | -3.8pp |
| Older workers and pre-retirees (50 to 59) | 15 | 19.0% | 16.5% | 509 | 11.5% | 17.3% | -494 | +7.5pp |
| Empty nesters and retirees (60 to 69) | 15 | 19.0% | 19.9% | 559 | 12.6% | 18.8% | -544 | +6.4pp |
| Seniors (70 to 84) | 3 | 3.8% | 17.7% | 550 | 12.4% | 13.8% | -547 | -8.6pp |
| Elderly aged (85 and over) | 0 | 0.0% | 2.3% | 196 | 4.4% | 2.2% | -196 | -4.4pp |
| Total | 79 | 100.0% | 100.0% | 4,444 | 100.0% | 100.0% | -4,365 | 0.0pp |