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 Brunswick (WA), accounting for 16.1% (192 people). This share was lower than Harvey (S) (19.7%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which decreased by 31 people and 3.9 percentage points.
Section overview
Age structure - Service age groups
Brunswick (WA) - Total persons (Usual residence)
This table summarises service age groups for Brunswick (WA) in 2021 for persons, with comparison against Harvey (S) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Brunswick (WA), with comparison markers for Harvey (S).
Babies and pre-schoolers (0 to 4)
2021 count
54
% of total
4.5%
Change from 2016
-0.8pp
54
4.5%
-0.8pp
Primary schoolers (5 to 11)
2021 count
112
% of total
9.4%
Change from 2016
+0.3pp
112
9.4%
+0.3pp
Secondary schoolers (12 to 17)
2021 count
102
% of total
8.5%
Change from 2016
-2.8pp
102
8.5%
-2.8pp
Tertiary education and independence (18 to 24)
2021 count
97
% of total
8.1%
Change from 2016
+1.6pp
97
8.1%
+1.6pp
Young workforce (25 to 34)
2021 count
113
% of total
9.5%
Change from 2016
+1.6pp
113
9.5%
+1.6pp
Parents and homebuilders (35 to 49)
2021 count
192
% of total
16.1%
Change from 2016
-3.9pp
192
16.1%
-3.9pp
Older workers and pre-retirees (50 to 59)
2021 count
184
% of total
15.4%
Change from 2016
-0.5pp
184
15.4%
-0.5pp
Empty nesters and retirees (60 to 69)
2021 count
158
% of total
13.2%
Change from 2016
+0.9pp
158
13.2%
+0.9pp
Seniors (70 to 84)
2021 count
137
% of total
11.5%
Change from 2016
-1.5pp
137
11.5%
-1.5pp
Elderly aged (85 and over)
2021 count
17
% of total
1.4%
Change from 2016
0.0pp
17
1.4%
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)
-5
-0.8pp
Primary schoolers (5 to 11)
+10
+0.3pp
Secondary schoolers (12 to 17)
-24
-2.8pp
Tertiary education and independence (18 to 24)
+25
+1.6pp
Young workforce (25 to 34)
+25
+1.6pp
Parents and homebuilders (35 to 49)
-31
-3.9pp
Older workers and pre-retirees (50 to 59)
+7
-0.5pp
Empty nesters and retirees (60 to 69)
+21
+0.9pp
Seniors (70 to 84)
-8
-1.5pp
Elderly aged (85 and over)
+1
0.0pp
Data table
Service age groups for Brunswick (WA). 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) | 54 | 4.5% | 6.0% | 59 | 5.3% | 6.8% | -5 | -0.8pp |
| Primary schoolers (5 to 11) | 112 | 9.4% | 10.1% | 102 | 9.1% | 10.9% | +10 | +0.3pp |
| Secondary schoolers (12 to 17) | 102 | 8.5% | 9.2% | 126 | 11.3% | 9.2% | -24 | -2.8pp |
| Tertiary education and independence (18 to 24) | 97 | 8.1% | 6.5% | 72 | 6.5% | 6.8% | +25 | +1.6pp |
| Young workforce (25 to 34) | 113 | 9.5% | 11.3% | 88 | 7.9% | 11.8% | +25 | +1.6pp |
| Parents and homebuilders (35 to 49) | 192 | 16.1% | 19.7% | 223 | 20.0% | 20.6% | -31 | -3.9pp |
| Older workers and pre-retirees (50 to 59) | 184 | 15.4% | 13.2% | 177 | 15.9% | 13.6% | +7 | -0.5pp |
| Empty nesters and retirees (60 to 69) | 158 | 13.2% | 12.2% | 137 | 12.3% | 11.3% | +21 | +0.9pp |
| Seniors (70 to 84) | 137 | 11.5% | 10.2% | 145 | 13.0% | 7.8% | -8 | -1.5pp |
| Elderly aged (85 and over) | 17 | 1.4% | 1.4% | 16 | 1.4% | 1.1% | +1 | 0.0pp |
| Total | 1,195 | 100.0% | 100.0% | 1,116 | 100.0% | 100.0% | +79 | 0.0pp |