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, Empty nesters and retirees (60 to 69) was the most common category among residents in Yarloop, accounting for 19.4% (105 people). This share was higher than Harvey (S) (12.2%). Since 2016, the biggest change was in Empty nesters and retirees (60 to 69), which increased by 105 people and 19.4 percentage points.
Section overview
Age structure - Service age groups
Yarloop - Total persons (Usual residence)
This table summarises service age groups for Yarloop in 2021 for persons, with comparison against Harvey (S) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Yarloop, with comparison markers for Harvey (S).
Babies and pre-schoolers (0 to 4)
2021 count
22
% of total
4.1%
Change from 2016
+4.1pp
22
4.1%
+4.1pp
Primary schoolers (5 to 11)
2021 count
49
% of total
9.1%
Change from 2016
+9.1pp
49
9.1%
+9.1pp
Secondary schoolers (12 to 17)
2021 count
48
% of total
8.9%
Change from 2016
+8.9pp
48
8.9%
+8.9pp
Tertiary education and independence (18 to 24)
2021 count
49
% of total
9.1%
Change from 2016
+9.1pp
49
9.1%
+9.1pp
Young workforce (25 to 34)
2021 count
59
% of total
10.9%
Change from 2016
-6.7pp
59
10.9%
-6.7pp
Parents and homebuilders (35 to 49)
2021 count
81
% of total
15.0%
Change from 2016
+15.0pp
81
15.0%
+15.0pp
Older workers and pre-retirees (50 to 59)
2021 count
70
% of total
12.9%
Change from 2016
+12.9pp
70
12.9%
+12.9pp
Empty nesters and retirees (60 to 69)
2021 count
105
% of total
19.4%
Change from 2016
+19.4pp
105
19.4%
+19.4pp
Seniors (70 to 84)
2021 count
48
% of total
8.9%
Change from 2016
+0.1pp
48
8.9%
+0.1pp
Elderly aged (85 and over)
2021 count
13
% of total
2.4%
Change from 2016
+2.4pp
13
2.4%
+2.4pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+22
+4.1pp
Primary schoolers (5 to 11)
+49
+9.1pp
Secondary schoolers (12 to 17)
+48
+8.9pp
Tertiary education and independence (18 to 24)
+49
+9.1pp
Young workforce (25 to 34)
+53
-6.7pp
Parents and homebuilders (35 to 49)
+81
+15.0pp
Older workers and pre-retirees (50 to 59)
+70
+12.9pp
Empty nesters and retirees (60 to 69)
+105
+19.4pp
Seniors (70 to 84)
+45
+0.1pp
Elderly aged (85 and over)
+13
+2.4pp
Data table
Service age groups for Yarloop. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Harvey (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Harvey (S)% | Count | % | Harvey (S)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 22 | 4.1% | 6.0% | 0 | 0.0% | 6.8% | +22 | +4.1pp |
| Primary schoolers (5 to 11) | 49 | 9.1% | 10.1% | 0 | 0.0% | 10.9% | +49 | +9.1pp |
| Secondary schoolers (12 to 17) | 48 | 8.9% | 9.2% | 0 | 0.0% | 9.2% | +48 | +8.9pp |
| Tertiary education and independence (18 to 24) | 49 | 9.1% | 6.5% | 0 | 0.0% | 6.8% | +49 | +9.1pp |
| Young workforce (25 to 34) | 59 | 10.9% | 11.3% | 6 | 17.6% | 11.8% | +53 | -6.7pp |
| Parents and homebuilders (35 to 49) | 81 | 15.0% | 19.7% | 0 | 0.0% | 20.6% | +81 | +15.0pp |
| Older workers and pre-retirees (50 to 59) | 70 | 12.9% | 13.2% | 0 | 0.0% | 13.6% | +70 | +12.9pp |
| Empty nesters and retirees (60 to 69) | 105 | 19.4% | 12.2% | 0 | 0.0% | 11.3% | +105 | +19.4pp |
| Seniors (70 to 84) | 48 | 8.9% | 10.2% | 3 | 8.8% | 7.8% | +45 | +0.1pp |
| Elderly aged (85 and over) | 13 | 2.4% | 1.4% | 0 | 0.0% | 1.1% | +13 | +2.4pp |
| Total | 541 | 100.0% | 100.0% | 34 | 100.0% | 100.0% | +507 | 0.0pp |