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 Tantanoola (part), accounting for 18.4% (84 people). This share was higher than Wattle Range (DC) (16.5%). Since 2016, the biggest change was in Primary schoolers (5 to 11), which decreased by 20 people and 3.6 percentage points.
Section overview
Age structure - Service age groups
Tantanoola (part) - Total persons (Usual residence)
This table summarises service age groups for Tantanoola (part) in 2021 for persons, with comparison against Wattle Range (DC) and change since 2016.
Chart view
Age structure - Service age groups snapshot
2021 distribution by category for Tantanoola (part), with comparison markers for Wattle Range (DC).
Babies and pre-schoolers (0 to 4)
2021 count
21
% of total
4.6%
Change from 2016
+0.6pp
21
4.6%
+0.6pp
Primary schoolers (5 to 11)
2021 count
26
% of total
5.7%
Change from 2016
-3.6pp
26
5.7%
-3.6pp
Secondary schoolers (12 to 17)
2021 count
37
% of total
8.1%
Change from 2016
-1.8pp
37
8.1%
-1.8pp
Tertiary education and independence (18 to 24)
2021 count
40
% of total
8.8%
Change from 2016
+1.9pp
40
8.8%
+1.9pp
Young workforce (25 to 34)
2021 count
32
% of total
7.0%
Change from 2016
-1.9pp
32
7.0%
-1.9pp
Parents and homebuilders (35 to 49)
2021 count
84
% of total
18.4%
Change from 2016
-1.8pp
84
18.4%
-1.8pp
Older workers and pre-retirees (50 to 59)
2021 count
80
% of total
17.5%
Change from 2016
+0.6pp
80
17.5%
+0.6pp
Empty nesters and retirees (60 to 69)
2021 count
76
% of total
16.6%
Change from 2016
-0.1pp
76
16.6%
-0.1pp
Seniors (70 to 84)
2021 count
48
% of total
10.5%
Change from 2016
+3.4pp
48
10.5%
+3.4pp
Elderly aged (85 and over)
2021 count
6
% of total
1.3%
Change from 2016
+0.7pp
6
1.3%
+0.7pp
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+1
+0.6pp
Primary schoolers (5 to 11)
-20
-3.6pp
Secondary schoolers (12 to 17)
-12
-1.8pp
Tertiary education and independence (18 to 24)
+6
+1.9pp
Young workforce (25 to 34)
-12
-1.9pp
Parents and homebuilders (35 to 49)
-16
-1.8pp
Older workers and pre-retirees (50 to 59)
-4
+0.6pp
Empty nesters and retirees (60 to 69)
-7
-0.1pp
Seniors (70 to 84)
+13
+3.4pp
Elderly aged (85 and over)
+3
+0.7pp
Data table
Service age groups for Tantanoola (part). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Wattle Range (DC).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Wattle Range (DC)% | Count | % | Wattle Range (DC)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 21 | 4.6% | 4.5% | 20 | 4.0% | 5.5% | +1 | +0.6pp |
| Primary schoolers (5 to 11) | 26 | 5.7% | 8.1% | 46 | 9.3% | 8.9% | -20 | -3.6pp |
| Secondary schoolers (12 to 17) | 37 | 8.1% | 7.5% | 49 | 9.9% | 7.4% | -12 | -1.8pp |
| Tertiary education and independence (18 to 24) | 40 | 8.8% | 6.4% | 34 | 6.9% | 6.5% | +6 | +1.9pp |
| Young workforce (25 to 34) | 32 | 7.0% | 8.7% | 44 | 8.9% | 8.7% | -12 | -1.9pp |
| Parents and homebuilders (35 to 49) | 84 | 18.4% | 16.5% | 100 | 20.2% | 18.7% | -16 | -1.8pp |
| Older workers and pre-retirees (50 to 59) | 80 | 17.5% | 15.4% | 84 | 16.9% | 15.3% | -4 | +0.6pp |
| Empty nesters and retirees (60 to 69) | 76 | 16.6% | 16.2% | 83 | 16.7% | 15.1% | -7 | -0.1pp |
| Seniors (70 to 84) | 48 | 10.5% | 14.2% | 35 | 7.1% | 11.2% | +13 | +3.4pp |
| Elderly aged (85 and over) | 6 | 1.3% | 2.6% | 3 | 0.6% | 2.8% | +3 | +0.7pp |
| Total | 457 | 100.0% | 100.0% | 496 | 100.0% | 100.0% | -39 | 0.0pp |