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, 10 to 14 year olds was the largest age group among residents in Rossmoyne, accounting for 8.5% (311 people). This share was higher than Canning (C) (6.5%). Since 2016, the biggest change was in 80 to 84 year olds, which increased by 78 people and 1.7 percentage points.
Section overview
Age structure - Five year age groups
Rossmoyne - Total persons (Usual residence)
This table summarises five year age groups for Rossmoyne in 2021 for persons, with comparison against Canning (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Rossmoyne, with comparison markers for Canning (C).
0 to 4
2021 count
102
% of total
2.8%
Change from 2016
-0.8pp
102
2.8%
-0.8pp
5 to 9
2021 count
218
% of total
6.0%
Change from 2016
0.0pp
218
6.0%
0.0pp
10 to 14
2021 count
311
% of total
8.5%
Change from 2016
+0.6pp
311
8.5%
+0.6pp
15 to 19
2021 count
271
% of total
7.4%
Change from 2016
-1.3pp
271
7.4%
-1.3pp
20 to 24
2021 count
197
% of total
5.4%
Change from 2016
-0.3pp
197
5.4%
-0.3pp
25 to 29
2021 count
87
% of total
2.4%
Change from 2016
-0.9pp
87
2.4%
-0.9pp
30 to 34
2021 count
77
% of total
2.1%
Change from 2016
-0.2pp
77
2.1%
-0.2pp
35 to 39
2021 count
187
% of total
5.1%
Change from 2016
+0.5pp
187
5.1%
+0.5pp
40 to 44
2021 count
233
% of total
6.4%
Change from 2016
+0.6pp
233
6.4%
+0.6pp
45 to 49
2021 count
245
% of total
6.7%
Change from 2016
-0.5pp
245
6.7%
-0.5pp
50 to 54
2021 count
236
% of total
6.5%
Change from 2016
-0.9pp
236
6.5%
-0.9pp
55 to 59
2021 count
223
% of total
6.1%
Change from 2016
-0.3pp
223
6.1%
-0.3pp
60 to 64
2021 count
214
% of total
5.9%
Change from 2016
+0.4pp
214
5.9%
+0.4pp
65 to 69
2021 count
208
% of total
5.7%
Change from 2016
+0.9pp
208
5.7%
+0.9pp
70 to 74
2021 count
201
% of total
5.5%
Change from 2016
+1.6pp
201
5.5%
+1.6pp
75 to 79
2021 count
197
% of total
5.4%
Change from 2016
-0.3pp
197
5.4%
-0.3pp
80 to 84
2021 count
216
% of total
5.9%
Change from 2016
+1.7pp
216
5.9%
+1.7pp
85 and over
2021 count
257
% of total
7.1%
Change from 2016
-0.3pp
257
7.1%
-0.3pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-18
-0.8pp
5 to 9
+18
0.0pp
10 to 14
+50
+0.6pp
15 to 19
-17
-1.3pp
20 to 24
+7
-0.3pp
25 to 29
-21
-0.9pp
30 to 34
+2
-0.2pp
35 to 39
+35
+0.5pp
40 to 44
+41
+0.6pp
45 to 49
+7
-0.5pp
50 to 54
-9
-0.9pp
55 to 59
+10
-0.3pp
60 to 64
+32
+0.4pp
65 to 69
+50
+0.9pp
70 to 74
+72
+1.6pp
75 to 79
+9
-0.3pp
80 to 84
+78
+1.7pp
85 and over
+11
-0.3pp
Data table
Five year age groups for Rossmoyne. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Canning (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Canning (C)% | Count | % | Canning (C)% | Count | pp | |
| 0 to 4 | 102 | 2.8% | 5.5% | 120 | 3.6% | 5.6% | -18 | -0.8pp |
| 5 to 9 | 218 | 6.0% | 6.1% | 200 | 6.0% | 6.0% | +18 | 0.0pp |
| 10 to 14 | 311 | 8.5% | 6.5% | 261 | 7.9% | 5.9% | +50 | +0.6pp |
| 15 to 19 | 271 | 7.4% | 6.2% | 288 | 8.7% | 6.9% | -17 | -1.3pp |
| 20 to 24 | 197 | 5.4% | 8.1% | 190 | 5.7% | 9.2% | +7 | -0.3pp |
| 25 to 29 | 87 | 2.4% | 8.0% | 108 | 3.3% | 8.6% | -21 | -0.9pp |
| 30 to 34 | 77 | 2.1% | 7.6% | 75 | 2.3% | 7.9% | +2 | -0.2pp |
| 35 to 39 | 187 | 5.1% | 7.6% | 152 | 4.6% | 6.9% | +35 | +0.5pp |
| 40 to 44 | 233 | 6.4% | 7.1% | 192 | 5.8% | 6.6% | +41 | +0.6pp |
| 45 to 49 | 245 | 6.7% | 6.4% | 238 | 7.2% | 6.5% | +7 | -0.5pp |
| 50 to 54 | 236 | 6.5% | 5.8% | 245 | 7.4% | 6.0% | -9 | -0.9pp |
| 55 to 59 | 223 | 6.1% | 5.4% | 213 | 6.4% | 5.6% | +10 | -0.3pp |
| 60 to 64 | 214 | 5.9% | 5.1% | 182 | 5.5% | 5.1% | +32 | +0.4pp |
| 65 to 69 | 208 | 5.7% | 4.5% | 158 | 4.8% | 4.5% | +50 | +0.9pp |
| 70 to 74 | 201 | 5.5% | 3.9% | 129 | 3.9% | 3.1% | +72 | +1.6pp |
| 75 to 79 | 197 | 5.4% | 2.7% | 188 | 5.7% | 2.3% | +9 | -0.3pp |
| 80 to 84 | 216 | 5.9% | 1.8% | 138 | 4.2% | 1.6% | +78 | +1.7pp |
| 85 and over | 257 | 7.1% | 1.7% | 246 | 7.4% | 1.7% | +11 | -0.3pp |
| Total | 3,638 | 100.0% | 100.0% | 3,321 | 100.0% | 100.0% | +317 | 0.0pp |