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 Yallingup Siding, accounting for 18.8% (61 people). This share was lower than Busselton (C) (19.6%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 22 people and 6.5 percentage points.
Section overview
Age structure - Service age groups
Yallingup Siding - Total persons (Usual residence)
This table summarises service age groups for Yallingup Siding in 2021 for persons, with comparison against Busselton (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Yallingup Siding, with comparison markers for Busselton (C).
Babies and pre-schoolers (0 to 4)
2021 count
11
% of total
3.4%
Change from 2016
-1.5pp
11
3.4%
-1.5pp
Primary schoolers (5 to 11)
2021 count
31
% of total
9.6%
Change from 2016
-2.2pp
31
9.6%
-2.2pp
Secondary schoolers (12 to 17)
2021 count
21
% of total
6.5%
Change from 2016
-2.3pp
21
6.5%
-2.3pp
Tertiary education and independence (18 to 24)
2021 count
10
% of total
3.1%
Change from 2016
+0.2pp
10
3.1%
+0.2pp
Young workforce (25 to 34)
2021 count
15
% of total
4.6%
Change from 2016
-0.3pp
15
4.6%
-0.3pp
Parents and homebuilders (35 to 49)
2021 count
61
% of total
18.8%
Change from 2016
-1.8pp
61
18.8%
-1.8pp
Older workers and pre-retirees (50 to 59)
2021 count
57
% of total
17.6%
Change from 2016
-2.7pp
57
17.6%
-2.7pp
Empty nesters and retirees (60 to 69)
2021 count
58
% of total
17.9%
Change from 2016
+0.9pp
58
17.9%
+0.9pp
Seniors (70 to 84)
2021 count
38
% of total
11.7%
Change from 2016
+6.5pp
38
11.7%
+6.5pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
0.0pp
0
0.0%
0.0pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-4
-1.5pp
Primary schoolers (5 to 11)
-5
-2.2pp
Secondary schoolers (12 to 17)
-6
-2.3pp
Tertiary education and independence (18 to 24)
+1
+0.2pp
Young workforce (25 to 34)
0
-0.3pp
Parents and homebuilders (35 to 49)
-2
-1.8pp
Older workers and pre-retirees (50 to 59)
-5
-2.7pp
Empty nesters and retirees (60 to 69)
+6
+0.9pp
Seniors (70 to 84)
+22
+6.5pp
Elderly aged (85 and over)
0
0.0pp
Data table
Service age groups for Yallingup Siding. 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) | 11 | 3.4% | 5.0% | 15 | 4.9% | 6.1% | -4 | -1.5pp |
| Primary schoolers (5 to 11) | 31 | 9.6% | 9.4% | 36 | 11.8% | 10.1% | -5 | -2.2pp |
| Secondary schoolers (12 to 17) | 21 | 6.5% | 8.1% | 27 | 8.8% | 8.1% | -6 | -2.3pp |
| Tertiary education and independence (18 to 24) | 10 | 3.1% | 5.2% | 9 | 2.9% | 5.8% | +1 | +0.2pp |
| Young workforce (25 to 34) | 15 | 4.6% | 9.4% | 15 | 4.9% | 10.3% | 0 | -0.3pp |
| Parents and homebuilders (35 to 49) | 61 | 18.8% | 19.6% | 63 | 20.6% | 20.5% | -2 | -1.8pp |
| Older workers and pre-retirees (50 to 59) | 57 | 17.6% | 13.0% | 62 | 20.3% | 12.9% | -5 | -2.7pp |
| Empty nesters and retirees (60 to 69) | 58 | 17.9% | 13.6% | 52 | 17.0% | 13.2% | +6 | +0.9pp |
| Seniors (70 to 84) | 38 | 11.7% | 14.0% | 16 | 5.2% | 10.7% | +22 | +6.5pp |
| Elderly aged (85 and over) | 0 | 0.0% | 2.6% | 0 | 0.0% | 2.3% | 0 | 0.0pp |
| Total | 324 | 100.0% | 100.0% | 306 | 100.0% | 100.0% | +18 | 0.0pp |