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 Wudinna (DC), accounting for 17.1% (194 people). This share was higher than Regional SA (16.4%). Since 2016, the biggest change was in Older workers and pre-retirees (50 to 59), which decreased by 35 people and 1.6 percentage points.
Section overview
Age structure - Service age groups
Wudinna (DC) - Total persons (Usual residence)
This table summarises service age groups for Wudinna (DC) in 2021 for persons, with comparison against Regional SA and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Wudinna (DC), with comparison markers for Regional SA.
Babies and pre-schoolers (0 to 4)
2021 count
60
% of total
5.3%
Change from 2016
-1.0pp
60
5.3%
-1.0pp
Primary schoolers (5 to 11)
2021 count
130
% of total
11.4%
Change from 2016
-0.2pp
130
11.4%
-0.2pp
Secondary schoolers (12 to 17)
2021 count
99
% of total
8.7%
Change from 2016
+3.1pp
99
8.7%
+3.1pp
Tertiary education and independence (18 to 24)
2021 count
57
% of total
5.0%
Change from 2016
-1.5pp
57
5.0%
-1.5pp
Young workforce (25 to 34)
2021 count
117
% of total
10.3%
Change from 2016
+0.9pp
117
10.3%
+0.9pp
Parents and homebuilders (35 to 49)
2021 count
194
% of total
17.1%
Change from 2016
-0.9pp
194
17.1%
-0.9pp
Older workers and pre-retirees (50 to 59)
2021 count
155
% of total
13.6%
Change from 2016
-1.6pp
155
13.6%
-1.6pp
Empty nesters and retirees (60 to 69)
2021 count
149
% of total
13.1%
Change from 2016
-0.9pp
149
13.1%
-0.9pp
Seniors (70 to 84)
2021 count
128
% of total
11.3%
Change from 2016
+2.4pp
128
11.3%
+2.4pp
Elderly aged (85 and over)
2021 count
46
% of total
4.0%
Change from 2016
+1.2pp
46
4.0%
+1.2pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-19
-1.0pp
Primary schoolers (5 to 11)
-15
-0.2pp
Secondary schoolers (12 to 17)
+29
+3.1pp
Tertiary education and independence (18 to 24)
-24
-1.5pp
Young workforce (25 to 34)
-1
+0.9pp
Parents and homebuilders (35 to 49)
-31
-0.9pp
Older workers and pre-retirees (50 to 59)
-35
-1.6pp
Empty nesters and retirees (60 to 69)
-26
-0.9pp
Seniors (70 to 84)
+17
+2.4pp
Elderly aged (85 and over)
+11
+1.2pp
Data table
Service age groups for Wudinna (DC). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Regional SA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional SA% | Count | % | Regional SA% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 60 | 5.3% | 4.9% | 79 | 6.3% | 5.5% | -19 | -1.0pp |
| Primary schoolers (5 to 11) | 130 | 11.4% | 8.1% | 145 | 11.6% | 8.6% | -15 | -0.2pp |
| Secondary schoolers (12 to 17) | 99 | 8.7% | 7.0% | 70 | 5.6% | 7.2% | +29 | +3.1pp |
| Tertiary education and independence (18 to 24) | 57 | 5.0% | 6.5% | 81 | 6.5% | 6.8% | -24 | -1.5pp |
| Young workforce (25 to 34) | 117 | 10.3% | 10.5% | 118 | 9.4% | 10.4% | -1 | +0.9pp |
| Parents and homebuilders (35 to 49) | 194 | 17.1% | 16.4% | 225 | 18.0% | 17.8% | -31 | -0.9pp |
| Older workers and pre-retirees (50 to 59) | 155 | 13.6% | 13.9% | 190 | 15.2% | 14.6% | -35 | -1.6pp |
| Empty nesters and retirees (60 to 69) | 149 | 13.1% | 15.1% | 175 | 14.0% | 14.4% | -26 | -0.9pp |
| Seniors (70 to 84) | 128 | 11.3% | 14.7% | 111 | 8.9% | 12.1% | +17 | +2.4pp |
| Elderly aged (85 and over) | 46 | 4.0% | 2.8% | 35 | 2.8% | 2.7% | +11 | +1.2pp |
| Total | 1,136 | 100.0% | 100.0% | 1,250 | 100.0% | 100.0% | -114 | 0.0pp |