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 Silver Sands, accounting for 18.1% (262 people). This share was higher than Mandurah (C) (16.9%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 76 people and 3.7 percentage points.
Section overview
Age structure - Service age groups
Silver Sands - Total persons (Usual residence)
This table summarises service age groups for Silver Sands in 2021 for persons, with comparison against Mandurah (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Silver Sands, with comparison markers for Mandurah (C).
Babies and pre-schoolers (0 to 4)
2021 count
90
% of total
6.2%
Change from 2016
+2.4pp
90
6.2%
+2.4pp
Primary schoolers (5 to 11)
2021 count
104
% of total
7.2%
Change from 2016
-0.4pp
104
7.2%
-0.4pp
Secondary schoolers (12 to 17)
2021 count
100
% of total
6.9%
Change from 2016
-0.7pp
100
6.9%
-0.7pp
Tertiary education and independence (18 to 24)
2021 count
90
% of total
6.2%
Change from 2016
-1.1pp
90
6.2%
-1.1pp
Young workforce (25 to 34)
2021 count
142
% of total
9.8%
Change from 2016
-2.1pp
142
9.8%
-2.1pp
Parents and homebuilders (35 to 49)
2021 count
262
% of total
18.1%
Change from 2016
+2.0pp
262
18.1%
+2.0pp
Older workers and pre-retirees (50 to 59)
2021 count
192
% of total
13.2%
Change from 2016
-0.9pp
192
13.2%
-0.9pp
Empty nesters and retirees (60 to 69)
2021 count
216
% of total
14.9%
Change from 2016
+0.5pp
216
14.9%
+0.5pp
Seniors (70 to 84)
2021 count
230
% of total
15.9%
Change from 2016
+3.7pp
230
15.9%
+3.7pp
Elderly aged (85 and over)
2021 count
46
% of total
3.2%
Change from 2016
+0.9pp
46
3.2%
+0.9pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+42
+2.4pp
Primary schoolers (5 to 11)
+9
-0.4pp
Secondary schoolers (12 to 17)
+4
-0.7pp
Tertiary education and independence (18 to 24)
-2
-1.1pp
Young workforce (25 to 34)
-8
-2.1pp
Parents and homebuilders (35 to 49)
+60
+2.0pp
Older workers and pre-retirees (50 to 59)
+15
-0.9pp
Empty nesters and retirees (60 to 69)
+35
+0.5pp
Seniors (70 to 84)
+76
+3.7pp
Elderly aged (85 and over)
+17
+0.9pp
Data table
Service age groups for Silver Sands. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Mandurah (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mandurah (C)% | Count | % | Mandurah (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 90 | 6.2% | 5.3% | 48 | 3.8% | 5.8% | +42 | +2.4pp |
| Primary schoolers (5 to 11) | 104 | 7.2% | 8.3% | 95 | 7.6% | 8.7% | +9 | -0.4pp |
| Secondary schoolers (12 to 17) | 100 | 6.9% | 7.2% | 96 | 7.6% | 7.1% | +4 | -0.7pp |
| Tertiary education and independence (18 to 24) | 90 | 6.2% | 7.0% | 92 | 7.3% | 7.8% | -2 | -1.1pp |
| Young workforce (25 to 34) | 142 | 9.8% | 10.2% | 150 | 11.9% | 10.9% | -8 | -2.1pp |
| Parents and homebuilders (35 to 49) | 262 | 18.1% | 16.9% | 202 | 16.1% | 17.9% | +60 | +2.0pp |
| Older workers and pre-retirees (50 to 59) | 192 | 13.2% | 12.8% | 177 | 14.1% | 12.8% | +15 | -0.9pp |
| Empty nesters and retirees (60 to 69) | 216 | 14.9% | 13.6% | 181 | 14.4% | 13.2% | +35 | +0.5pp |
| Seniors (70 to 84) | 230 | 15.9% | 15.6% | 154 | 12.2% | 13.2% | +76 | +3.7pp |
| Elderly aged (85 and over) | 46 | 3.2% | 3.0% | 29 | 2.3% | 2.6% | +17 | +0.9pp |
| Total | 1,451 | 100.0% | 100.0% | 1,258 | 100.0% | 100.0% | +193 | 0.0pp |