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 Carbunup River, accounting for 20.5% (23 people). This share was higher than Busselton (C) (13%). Since 2016, the biggest change was in Babies and pre-schoolers (0 to 4), which increased by 16 people and 14.3 percentage points.
Section overview
Age structure - Service age groups
Carbunup River - Total persons (Usual residence)
This table summarises service age groups for Carbunup River in 2021 for persons, with comparison against Busselton (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Carbunup River, with comparison markers for Busselton (C).
Babies and pre-schoolers (0 to 4)
2021 count
16
% of total
14.3%
Change from 2016
+14.3pp
16
14.3%
+14.3pp
Primary schoolers (5 to 11)
2021 count
4
% of total
3.6%
Change from 2016
-5.0pp
4
3.6%
-5.0pp
Secondary schoolers (12 to 17)
2021 count
0
% of total
0.0%
Change from 2016
-7.8pp
0
0.0%
-7.8pp
Tertiary education and independence (18 to 24)
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
Young workforce (25 to 34)
2021 count
17
% of total
15.2%
Change from 2016
-2.0pp
17
15.2%
-2.0pp
Parents and homebuilders (35 to 49)
2021 count
21
% of total
18.8%
Change from 2016
-0.2pp
21
18.8%
-0.2pp
Older workers and pre-retirees (50 to 59)
2021 count
23
% of total
20.5%
Change from 2016
-2.8pp
23
20.5%
-2.8pp
Empty nesters and retirees (60 to 69)
2021 count
15
% of total
13.4%
Change from 2016
+8.2pp
15
13.4%
+8.2pp
Seniors (70 to 84)
2021 count
9
% of total
8.0%
Change from 2016
+8.0pp
9
8.0%
+8.0pp
Elderly aged (85 and over)
2021 count
3
% of total
2.7%
Change from 2016
+0.1pp
3
2.7%
+0.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+16
+14.3pp
Primary schoolers (5 to 11)
-6
-5.0pp
Secondary schoolers (12 to 17)
-9
-7.8pp
Tertiary education and independence (18 to 24)
0
0.0pp
Young workforce (25 to 34)
-3
-2.0pp
Parents and homebuilders (35 to 49)
-1
-0.2pp
Older workers and pre-retirees (50 to 59)
-4
-2.8pp
Empty nesters and retirees (60 to 69)
+9
+8.2pp
Seniors (70 to 84)
+9
+8.0pp
Elderly aged (85 and over)
0
+0.1pp
Data table
Service age groups for Carbunup River. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Busselton (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Busselton (C)% | Count | % | Busselton (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 16 | 14.3% | 5.0% | 0 | 0.0% | 6.1% | +16 | +14.3pp |
| Primary schoolers (5 to 11) | 4 | 3.6% | 9.4% | 10 | 8.6% | 10.1% | -6 | -5.0pp |
| Secondary schoolers (12 to 17) | 0 | 0.0% | 8.1% | 9 | 7.8% | 8.1% | -9 | -7.8pp |
| Tertiary education and independence (18 to 24) | 0 | 0.0% | 5.2% | 0 | 0.0% | 5.8% | 0 | 0.0pp |
| Young workforce (25 to 34) | 17 | 15.2% | 9.4% | 20 | 17.2% | 10.3% | -3 | -2.0pp |
| Parents and homebuilders (35 to 49) | 21 | 18.8% | 19.6% | 22 | 19.0% | 20.5% | -1 | -0.2pp |
| Older workers and pre-retirees (50 to 59) | 23 | 20.5% | 13.0% | 27 | 23.3% | 12.9% | -4 | -2.8pp |
| Empty nesters and retirees (60 to 69) | 15 | 13.4% | 13.6% | 6 | 5.2% | 13.2% | +9 | +8.2pp |
| Seniors (70 to 84) | 9 | 8.0% | 14.0% | 0 | 0.0% | 10.7% | +9 | +8.0pp |
| Elderly aged (85 and over) | 3 | 2.7% | 2.6% | 3 | 2.6% | 2.3% | 0 | +0.1pp |
| Total | 112 | 100.0% | 100.0% | 116 | 100.0% | 100.0% | -4 | 0.0pp |