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 Yalyalup, accounting for 21.7% (641 people). This share was higher than Busselton (C) (19.6%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 120 people and 3.1 percentage points.
Section overview
Age structure - Service age groups
Yalyalup - Total persons (Usual residence)
This table summarises service age groups for Yalyalup in 2021 for persons, with comparison against Busselton (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Yalyalup, with comparison markers for Busselton (C).
Babies and pre-schoolers (0 to 4)
2021 count
199
% of total
6.7%
Change from 2016
-1.5pp
199
6.7%
-1.5pp
Primary schoolers (5 to 11)
2021 count
340
% of total
11.5%
Change from 2016
-2.0pp
340
11.5%
-2.0pp
Secondary schoolers (12 to 17)
2021 count
280
% of total
9.5%
Change from 2016
-0.7pp
280
9.5%
-0.7pp
Tertiary education and independence (18 to 24)
2021 count
207
% of total
7.0%
Change from 2016
0.0pp
207
7.0%
0.0pp
Young workforce (25 to 34)
2021 count
403
% of total
13.7%
Change from 2016
-0.3pp
403
13.7%
-0.3pp
Parents and homebuilders (35 to 49)
2021 count
641
% of total
21.7%
Change from 2016
-1.3pp
641
21.7%
-1.3pp
Older workers and pre-retirees (50 to 59)
2021 count
345
% of total
11.7%
Change from 2016
+1.5pp
345
11.7%
+1.5pp
Empty nesters and retirees (60 to 69)
2021 count
239
% of total
8.1%
Change from 2016
-1.1pp
239
8.1%
-1.1pp
Seniors (70 to 84)
2021 count
266
% of total
9.0%
Change from 2016
+3.1pp
266
9.0%
+3.1pp
Elderly aged (85 and over)
2021 count
12
% of total
0.4%
Change from 2016
0.0pp
12
0.4%
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)
+4
-2.0pp
Secondary schoolers (12 to 17)
+27
-0.7pp
Tertiary education and independence (18 to 24)
+34
0.0pp
Young workforce (25 to 34)
+54
-0.3pp
Parents and homebuilders (35 to 49)
+69
-1.3pp
Older workers and pre-retirees (50 to 59)
+91
+1.5pp
Empty nesters and retirees (60 to 69)
+11
-1.1pp
Seniors (70 to 84)
+120
+3.1pp
Elderly aged (85 and over)
+3
0.0pp
Data table
Service age groups for Yalyalup. 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) | 199 | 6.7% | 5.0% | 203 | 8.2% | 6.1% | -4 | -1.5pp |
| Primary schoolers (5 to 11) | 340 | 11.5% | 9.4% | 336 | 13.5% | 10.1% | +4 | -2.0pp |
| Secondary schoolers (12 to 17) | 280 | 9.5% | 8.1% | 253 | 10.2% | 8.1% | +27 | -0.7pp |
| Tertiary education and independence (18 to 24) | 207 | 7.0% | 5.2% | 173 | 7.0% | 5.8% | +34 | 0.0pp |
| Young workforce (25 to 34) | 403 | 13.7% | 9.4% | 349 | 14.0% | 10.3% | +54 | -0.3pp |
| Parents and homebuilders (35 to 49) | 641 | 21.7% | 19.6% | 572 | 23.0% | 20.5% | +69 | -1.3pp |
| Older workers and pre-retirees (50 to 59) | 345 | 11.7% | 13.0% | 254 | 10.2% | 12.9% | +91 | +1.5pp |
| Empty nesters and retirees (60 to 69) | 239 | 8.1% | 13.6% | 228 | 9.2% | 13.2% | +11 | -1.1pp |
| Seniors (70 to 84) | 266 | 9.0% | 14.0% | 146 | 5.9% | 10.7% | +120 | +3.1pp |
| Elderly aged (85 and over) | 12 | 0.4% | 2.6% | 9 | 0.4% | 2.3% | +3 | 0.0pp |
| Total | 2,950 | 100.0% | 100.0% | 2,486 | 100.0% | 100.0% | +464 | 0.0pp |