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 Wundowie, accounting for 17.9% (246 people). This share was similar to Northam (S) (17.9%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 246 people and 17.9 percentage points.
Section overview
Age structure - Service age groups
Wundowie - Total persons (Usual residence)
This table summarises service age groups for Wundowie in 2021 for persons, with comparison against Northam (S) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Wundowie, with comparison markers for Northam (S).
Babies and pre-schoolers (0 to 4)
2021 count
68
% of total
5.0%
Change from 2016
+5.0pp
68
5.0%
+5.0pp
Primary schoolers (5 to 11)
2021 count
126
% of total
9.2%
Change from 2016
+9.2pp
126
9.2%
+9.2pp
Secondary schoolers (12 to 17)
2021 count
112
% of total
8.2%
Change from 2016
-4.3pp
112
8.2%
-4.3pp
Tertiary education and independence (18 to 24)
2021 count
98
% of total
7.1%
Change from 2016
+7.1pp
98
7.1%
+7.1pp
Young workforce (25 to 34)
2021 count
136
% of total
9.9%
Change from 2016
+9.9pp
136
9.9%
+9.9pp
Parents and homebuilders (35 to 49)
2021 count
246
% of total
17.9%
Change from 2016
+17.9pp
246
17.9%
+17.9pp
Older workers and pre-retirees (50 to 59)
2021 count
194
% of total
14.1%
Change from 2016
+1.6pp
194
14.1%
+1.6pp
Empty nesters and retirees (60 to 69)
2021 count
208
% of total
15.2%
Change from 2016
+2.7pp
208
15.2%
+2.7pp
Seniors (70 to 84)
2021 count
174
% of total
12.7%
Change from 2016
+12.7pp
174
12.7%
+12.7pp
Elderly aged (85 and over)
2021 count
17
% of total
1.2%
Change from 2016
+1.2pp
17
1.2%
+1.2pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+68
+5.0pp
Primary schoolers (5 to 11)
+126
+9.2pp
Secondary schoolers (12 to 17)
+109
-4.3pp
Tertiary education and independence (18 to 24)
+98
+7.1pp
Young workforce (25 to 34)
+136
+9.9pp
Parents and homebuilders (35 to 49)
+246
+17.9pp
Older workers and pre-retirees (50 to 59)
+191
+1.6pp
Empty nesters and retirees (60 to 69)
+205
+2.7pp
Seniors (70 to 84)
+174
+12.7pp
Elderly aged (85 and over)
+17
+1.2pp
Data table
Service age groups for Wundowie. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Northam (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Northam (S)% | Count | % | Northam (S)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 68 | 5.0% | 5.1% | 0 | 0.0% | 6.0% | +68 | +5.0pp |
| Primary schoolers (5 to 11) | 126 | 9.2% | 9.2% | 0 | 0.0% | 9.0% | +126 | +9.2pp |
| Secondary schoolers (12 to 17) | 112 | 8.2% | 7.7% | 3 | 12.5% | 7.5% | +109 | -4.3pp |
| Tertiary education and independence (18 to 24) | 98 | 7.1% | 7.0% | 0 | 0.0% | 7.2% | +98 | +7.1pp |
| Young workforce (25 to 34) | 136 | 9.9% | 10.9% | 0 | 0.0% | 11.9% | +136 | +9.9pp |
| Parents and homebuilders (35 to 49) | 246 | 17.9% | 17.9% | 0 | 0.0% | 18.9% | +246 | +17.9pp |
| Older workers and pre-retirees (50 to 59) | 194 | 14.1% | 13.6% | 3 | 12.5% | 14.6% | +191 | +1.6pp |
| Empty nesters and retirees (60 to 69) | 208 | 15.2% | 14.4% | 3 | 12.5% | 13.5% | +205 | +2.7pp |
| Seniors (70 to 84) | 174 | 12.7% | 12.1% | 0 | 0.0% | 9.5% | +174 | +12.7pp |
| Elderly aged (85 and over) | 17 | 1.2% | 2.0% | 0 | 0.0% | 1.8% | +17 | +1.2pp |
| Total | 1,372 | 100.0% | 100.0% | 24 | 100.0% | 100.0% | +1,348 | 0.0pp |