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 Plantagenet (S), accounting for 17.6% (947 people). This share was lower than Regional WA (19.9%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 168 people and 2.5 percentage points.
Section overview
Age structure - Service age groups
Plantagenet (S) - Total persons (Usual residence)
This table summarises service age groups for Plantagenet (S) in 2021 for persons, with comparison against Regional WA and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Plantagenet (S), with comparison markers for Regional WA.
Babies and pre-schoolers (0 to 4)
2021 count
240
% of total
4.5%
Change from 2016
-0.4pp
240
4.5%
-0.4pp
Primary schoolers (5 to 11)
2021 count
466
% of total
8.6%
Change from 2016
0.0pp
466
8.6%
0.0pp
Secondary schoolers (12 to 17)
2021 count
393
% of total
7.3%
Change from 2016
+0.1pp
393
7.3%
+0.1pp
Tertiary education and independence (18 to 24)
2021 count
289
% of total
5.4%
Change from 2016
-0.9pp
289
5.4%
-0.9pp
Young workforce (25 to 34)
2021 count
454
% of total
8.4%
Change from 2016
+0.3pp
454
8.4%
+0.3pp
Parents and homebuilders (35 to 49)
2021 count
947
% of total
17.6%
Change from 2016
-2.3pp
947
17.6%
-2.3pp
Older workers and pre-retirees (50 to 59)
2021 count
856
% of total
15.9%
Change from 2016
0.0pp
856
15.9%
0.0pp
Empty nesters and retirees (60 to 69)
2021 count
896
% of total
16.6%
Change from 2016
+0.6pp
896
16.6%
+0.6pp
Seniors (70 to 84)
2021 count
724
% of total
13.4%
Change from 2016
+2.5pp
724
13.4%
+2.5pp
Elderly aged (85 and over)
2021 count
119
% of total
2.2%
Change from 2016
+0.3pp
119
2.2%
+0.3pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-11
-0.4pp
Primary schoolers (5 to 11)
+30
0.0pp
Secondary schoolers (12 to 17)
+25
+0.1pp
Tertiary education and independence (18 to 24)
-32
-0.9pp
Young workforce (25 to 34)
+41
+0.3pp
Parents and homebuilders (35 to 49)
-65
-2.3pp
Older workers and pre-retirees (50 to 59)
+46
0.0pp
Empty nesters and retirees (60 to 69)
+85
+0.6pp
Seniors (70 to 84)
+168
+2.5pp
Elderly aged (85 and over)
+21
+0.3pp
Data table
Service age groups for Plantagenet (S). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional WA% | Count | % | Regional WA% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 240 | 4.5% | 6.0% | 251 | 4.9% | 6.6% | -11 | -0.4pp |
| Primary schoolers (5 to 11) | 466 | 8.6% | 9.5% | 436 | 8.6% | 9.8% | +30 | 0.0pp |
| Secondary schoolers (12 to 17) | 393 | 7.3% | 7.6% | 368 | 7.2% | 7.4% | +25 | +0.1pp |
| Tertiary education and independence (18 to 24) | 289 | 5.4% | 6.7% | 321 | 6.3% | 7.0% | -32 | -0.9pp |
| Young workforce (25 to 34) | 454 | 8.4% | 12.5% | 413 | 8.1% | 13.6% | +41 | +0.3pp |
| Parents and homebuilders (35 to 49) | 947 | 17.6% | 19.9% | 1,012 | 19.9% | 20.8% | -65 | -2.3pp |
| Older workers and pre-retirees (50 to 59) | 856 | 15.9% | 13.7% | 810 | 15.9% | 14.1% | +46 | 0.0pp |
| Empty nesters and retirees (60 to 69) | 896 | 16.6% | 12.4% | 811 | 16.0% | 11.3% | +85 | +0.6pp |
| Seniors (70 to 84) | 724 | 13.4% | 10.1% | 556 | 10.9% | 7.8% | +168 | +2.5pp |
| Elderly aged (85 and over) | 119 | 2.2% | 1.7% | 98 | 1.9% | 1.5% | +21 | +0.3pp |
| Total | 5,388 | 100.0% | 100.0% | 5,079 | 100.0% | 100.0% | +309 | 0.0pp |