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 Gnowangerup (S), accounting for 18.4% (223 people). This share was lower than Regional WA (19.9%). Since 2016, the biggest change was in Secondary schoolers (12 to 17), which increased by 29 people and 2.4 percentage points.
Section overview
Age structure - Service age groups
Gnowangerup (S) - Total persons (Usual residence)
This table summarises service age groups for Gnowangerup (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 Gnowangerup (S), with comparison markers for Regional WA.
Babies and pre-schoolers (0 to 4)
2021 count
104
% of total
8.6%
Change from 2016
+1.8pp
104
8.6%
+1.8pp
Primary schoolers (5 to 11)
2021 count
113
% of total
9.3%
Change from 2016
-1.2pp
113
9.3%
-1.2pp
Secondary schoolers (12 to 17)
2021 count
79
% of total
6.5%
Change from 2016
+2.4pp
79
6.5%
+2.4pp
Tertiary education and independence (18 to 24)
2021 count
59
% of total
4.9%
Change from 2016
-2.3pp
59
4.9%
-2.3pp
Young workforce (25 to 34)
2021 count
166
% of total
13.7%
Change from 2016
-0.1pp
166
13.7%
-0.1pp
Parents and homebuilders (35 to 49)
2021 count
223
% of total
18.4%
Change from 2016
-1.6pp
223
18.4%
-1.6pp
Older workers and pre-retirees (50 to 59)
2021 count
178
% of total
14.7%
Change from 2016
0.0pp
178
14.7%
0.0pp
Empty nesters and retirees (60 to 69)
2021 count
179
% of total
14.7%
Change from 2016
+0.2pp
179
14.7%
+0.2pp
Seniors (70 to 84)
2021 count
81
% of total
6.7%
Change from 2016
-0.2pp
81
6.7%
-0.2pp
Elderly aged (85 and over)
2021 count
14
% of total
1.2%
Change from 2016
+0.1pp
14
1.2%
+0.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+21
+1.8pp
Primary schoolers (5 to 11)
-15
-1.2pp
Secondary schoolers (12 to 17)
+29
+2.4pp
Tertiary education and independence (18 to 24)
-29
-2.3pp
Young workforce (25 to 34)
-2
-0.1pp
Parents and homebuilders (35 to 49)
-20
-1.6pp
Older workers and pre-retirees (50 to 59)
0
0.0pp
Empty nesters and retirees (60 to 69)
+3
+0.2pp
Seniors (70 to 84)
-3
-0.2pp
Elderly aged (85 and over)
+1
+0.1pp
Data table
Service age groups for Gnowangerup (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) | 104 | 8.6% | 6.0% | 83 | 6.8% | 6.6% | +21 | +1.8pp |
| Primary schoolers (5 to 11) | 113 | 9.3% | 9.5% | 128 | 10.5% | 9.8% | -15 | -1.2pp |
| Secondary schoolers (12 to 17) | 79 | 6.5% | 7.6% | 50 | 4.1% | 7.4% | +29 | +2.4pp |
| Tertiary education and independence (18 to 24) | 59 | 4.9% | 6.7% | 88 | 7.2% | 7.0% | -29 | -2.3pp |
| Young workforce (25 to 34) | 166 | 13.7% | 12.5% | 168 | 13.8% | 13.6% | -2 | -0.1pp |
| Parents and homebuilders (35 to 49) | 223 | 18.4% | 19.9% | 243 | 20.0% | 20.8% | -20 | -1.6pp |
| Older workers and pre-retirees (50 to 59) | 178 | 14.7% | 13.7% | 178 | 14.7% | 14.1% | 0 | 0.0pp |
| Empty nesters and retirees (60 to 69) | 179 | 14.7% | 12.4% | 176 | 14.5% | 11.3% | +3 | +0.2pp |
| Seniors (70 to 84) | 81 | 6.7% | 10.1% | 84 | 6.9% | 7.8% | -3 | -0.2pp |
| Elderly aged (85 and over) | 14 | 1.2% | 1.7% | 13 | 1.1% | 1.5% | +1 | +0.1pp |
| Total | 1,215 | 100.0% | 100.0% | 1,215 | 100.0% | 100.0% | 0 | 0.0pp |