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 Quedjinup, accounting for 16.9% (71 people). This share was higher than Busselton (C) (13%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which decreased by 28 people and 7.3 percentage points.
Section overview
Age structure - Service age groups
Quedjinup - Total persons (Usual residence)
This table summarises service age groups for Quedjinup in 2021 for persons, with comparison against Busselton (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Quedjinup, with comparison markers for Busselton (C).
Babies and pre-schoolers (0 to 4)
2021 count
17
% of total
4.0%
Change from 2016
-2.4pp
17
4.0%
-2.4pp
Primary schoolers (5 to 11)
2021 count
44
% of total
10.5%
Change from 2016
+2.2pp
44
10.5%
+2.2pp
Secondary schoolers (12 to 17)
2021 count
38
% of total
9.0%
Change from 2016
+2.1pp
38
9.0%
+2.1pp
Tertiary education and independence (18 to 24)
2021 count
12
% of total
2.9%
Change from 2016
-1.0pp
12
2.9%
-1.0pp
Young workforce (25 to 34)
2021 count
15
% of total
3.6%
Change from 2016
-1.5pp
15
3.6%
-1.5pp
Parents and homebuilders (35 to 49)
2021 count
67
% of total
16.0%
Change from 2016
-7.3pp
67
16.0%
-7.3pp
Older workers and pre-retirees (50 to 59)
2021 count
71
% of total
16.9%
Change from 2016
-1.5pp
71
16.9%
-1.5pp
Empty nesters and retirees (60 to 69)
2021 count
68
% of total
16.2%
Change from 2016
+0.5pp
68
16.2%
+0.5pp
Seniors (70 to 84)
2021 count
56
% of total
13.3%
Change from 2016
+2.3pp
56
13.3%
+2.3pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
-0.7pp
0
0.0%
-0.7pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-9
-2.4pp
Primary schoolers (5 to 11)
+10
+2.2pp
Secondary schoolers (12 to 17)
+10
+2.1pp
Tertiary education and independence (18 to 24)
-4
-1.0pp
Young workforce (25 to 34)
-6
-1.5pp
Parents and homebuilders (35 to 49)
-28
-7.3pp
Older workers and pre-retirees (50 to 59)
-4
-1.5pp
Empty nesters and retirees (60 to 69)
+4
+0.5pp
Seniors (70 to 84)
+11
+2.3pp
Elderly aged (85 and over)
-3
-0.7pp
Data table
Service age groups for Quedjinup. 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) | 17 | 4.0% | 5.0% | 26 | 6.4% | 6.1% | -9 | -2.4pp |
| Primary schoolers (5 to 11) | 44 | 10.5% | 9.4% | 34 | 8.3% | 10.1% | +10 | +2.2pp |
| Secondary schoolers (12 to 17) | 38 | 9.0% | 8.1% | 28 | 6.9% | 8.1% | +10 | +2.1pp |
| Tertiary education and independence (18 to 24) | 12 | 2.9% | 5.2% | 16 | 3.9% | 5.8% | -4 | -1.0pp |
| Young workforce (25 to 34) | 15 | 3.6% | 9.4% | 21 | 5.1% | 10.3% | -6 | -1.5pp |
| Parents and homebuilders (35 to 49) | 67 | 16.0% | 19.6% | 95 | 23.3% | 20.5% | -28 | -7.3pp |
| Older workers and pre-retirees (50 to 59) | 71 | 16.9% | 13.0% | 75 | 18.4% | 12.9% | -4 | -1.5pp |
| Empty nesters and retirees (60 to 69) | 68 | 16.2% | 13.6% | 64 | 15.7% | 13.2% | +4 | +0.5pp |
| Seniors (70 to 84) | 56 | 13.3% | 14.0% | 45 | 11.0% | 10.7% | +11 | +2.3pp |
| Elderly aged (85 and over) | 0 | 0.0% | 2.6% | 3 | 0.7% | 2.3% | -3 | -0.7pp |
| Total | 420 | 100.0% | 100.0% | 408 | 100.0% | 100.0% | +12 | 0.0pp |