Population
Five year age groups
About this topic
Five year age groups show the population in standard five-year cohorts from early childhood through older age. Because each band covers the same span of years, the topic gives a clear and comparable view of an area's age structure.
This topic is useful for identifying growth or decline in specific cohorts and for comparing age patterns across places and over time. For service planning, it is often read together with service age groups, household types, and dwelling types.
Interpretation notes
- Age is reported as at Census night, so the counts are a snapshot of the resident age structure at that point in time.
- Because each band covers the same five-year span, this topic is best for exact cohort comparison rather than service-planning life stages.
Related topics
Key insight
In 2021, 70 to 74 year olds was the largest age group among residents in Silver Sands, accounting for 8% (116 people). This share was higher than Mandurah (C) (6.9%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 82 people and 5.5 percentage points.
Section overview
Age structure - Five year age groups
Silver Sands - Total persons (Usual residence)
This table summarises five year age groups for Silver Sands in 2021 for persons, with comparison against Mandurah (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Silver Sands, with comparison markers for Mandurah (C).
0 to 4
2021 count
90
% of total
6.2%
Change from 2016
-0.3pp
90
6.2%
-0.3pp
5 to 9
2021 count
78
% of total
5.4%
Change from 2016
-1.3pp
78
5.4%
-1.3pp
10 to 14
2021 count
82
% of total
5.7%
Change from 2016
-0.2pp
82
5.7%
-0.2pp
15 to 19
2021 count
73
% of total
5.0%
Change from 2016
-0.5pp
73
5.0%
-0.5pp
20 to 24
2021 count
61
% of total
4.2%
Change from 2016
-3.8pp
61
4.2%
-3.8pp
25 to 29
2021 count
58
% of total
4.0%
Change from 2016
-4.8pp
58
4.0%
-4.8pp
30 to 34
2021 count
84
% of total
5.8%
Change from 2016
-2.9pp
84
5.8%
-2.9pp
35 to 39
2021 count
100
% of total
6.9%
Change from 2016
-1.5pp
100
6.9%
-1.5pp
40 to 44
2021 count
58
% of total
4.0%
Change from 2016
-3.9pp
58
4.0%
-3.9pp
45 to 49
2021 count
104
% of total
7.2%
Change from 2016
+0.5pp
104
7.2%
+0.5pp
50 to 54
2021 count
86
% of total
5.9%
Change from 2016
-0.8pp
86
5.9%
-0.8pp
55 to 59
2021 count
106
% of total
7.3%
Change from 2016
-0.1pp
106
7.3%
-0.1pp
60 to 64
2021 count
107
% of total
7.4%
Change from 2016
+1.0pp
107
7.4%
+1.0pp
65 to 69
2021 count
109
% of total
7.5%
Change from 2016
+3.4pp
109
7.5%
+3.4pp
70 to 74
2021 count
116
% of total
8.0%
Change from 2016
+5.5pp
116
8.0%
+5.5pp
75 to 79
2021 count
76
% of total
5.2%
Change from 2016
+4.3pp
76
5.2%
+4.3pp
80 to 84
2021 count
38
% of total
2.6%
Change from 2016
+2.4pp
38
2.6%
+2.4pp
85 and over
2021 count
46
% of total
3.2%
Change from 2016
+2.6pp
46
3.2%
+2.6pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
0
-0.3pp
5 to 9
-14
-1.3pp
10 to 14
+1
-0.2pp
15 to 19
-2
-0.5pp
20 to 24
-49
-3.8pp
25 to 29
-63
-4.8pp
30 to 34
-35
-2.9pp
35 to 39
-15
-1.5pp
40 to 44
-51
-3.9pp
45 to 49
+12
+0.5pp
50 to 54
-6
-0.8pp
55 to 59
+4
-0.1pp
60 to 64
+19
+1.0pp
65 to 69
+52
+3.4pp
70 to 74
+82
+5.5pp
75 to 79
+63
+4.3pp
80 to 84
+35
+2.4pp
85 and over
+38
+2.6pp
Data table
Five year age groups for Silver Sands. Age structure - Five year 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 | |
| 0 to 4 | 90 | 6.2% | 5.3% | 90 | 6.5% | 5.8% | 0 | -0.3pp |
| 5 to 9 | 78 | 5.4% | 5.8% | 92 | 6.7% | 6.3% | -14 | -1.3pp |
| 10 to 14 | 82 | 5.7% | 6.3% | 81 | 5.9% | 5.9% | +1 | -0.2pp |
| 15 to 19 | 73 | 5.0% | 5.5% | 75 | 5.5% | 6.0% | -2 | -0.5pp |
| 20 to 24 | 61 | 4.2% | 5.0% | 110 | 8.0% | 5.4% | -49 | -3.8pp |
| 25 to 29 | 58 | 4.0% | 4.8% | 121 | 8.8% | 5.2% | -63 | -4.8pp |
| 30 to 34 | 84 | 5.8% | 5.4% | 119 | 8.7% | 5.7% | -35 | -2.9pp |
| 35 to 39 | 100 | 6.9% | 5.8% | 115 | 8.4% | 5.4% | -15 | -1.5pp |
| 40 to 44 | 58 | 4.0% | 5.3% | 109 | 7.9% | 6.1% | -51 | -3.9pp |
| 45 to 49 | 104 | 7.2% | 5.9% | 92 | 6.7% | 6.4% | +12 | +0.5pp |
| 50 to 54 | 86 | 5.9% | 6.2% | 92 | 6.7% | 6.5% | -6 | -0.8pp |
| 55 to 59 | 106 | 7.3% | 6.6% | 102 | 7.4% | 6.3% | +4 | -0.1pp |
| 60 to 64 | 107 | 7.4% | 6.7% | 88 | 6.4% | 6.4% | +19 | +1.0pp |
| 65 to 69 | 109 | 7.5% | 6.9% | 57 | 4.1% | 6.8% | +52 | +3.4pp |
| 70 to 74 | 116 | 8.0% | 6.9% | 34 | 2.5% | 5.7% | +82 | +5.5pp |
| 75 to 79 | 76 | 5.2% | 5.1% | 13 | 0.9% | 4.6% | +63 | +4.3pp |
| 80 to 84 | 38 | 2.6% | 3.6% | 3 | 0.2% | 3.0% | +35 | +2.4pp |
| 85 and over | 46 | 3.2% | 3.0% | 8 | 0.6% | 2.6% | +38 | +2.6pp |
| Total | 1,451 | 100.0% | 100.0% | 1,375 | 100.0% | 100.0% | +76 | 0.0pp |