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, 25 to 29 year olds was the largest age group among residents in Leederville, accounting for 13.4% (494 people). This share was higher than Vincent (C) (11.2%). Since 2016, the biggest change was in 85 and over year olds, which increased by 80 people and 2 percentage points.
Section overview
Age structure - Five year age groups
Leederville - Total persons (Usual residence)
This table summarises five year age groups for Leederville in 2021 for persons, with comparison against Vincent (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Leederville, with comparison markers for Vincent (C).
0 to 4
2021 count
188
% of total
5.1%
Change from 2016
+0.4pp
188
5.1%
+0.4pp
5 to 9
2021 count
110
% of total
3.0%
Change from 2016
-1.2pp
110
3.0%
-1.2pp
10 to 14
2021 count
128
% of total
3.5%
Change from 2016
+0.7pp
128
3.5%
+0.7pp
15 to 19
2021 count
139
% of total
3.8%
Change from 2016
-0.9pp
139
3.8%
-0.9pp
20 to 24
2021 count
267
% of total
7.2%
Change from 2016
-1.0pp
267
7.2%
-1.0pp
25 to 29
2021 count
494
% of total
13.4%
Change from 2016
-1.9pp
494
13.4%
-1.9pp
30 to 34
2021 count
484
% of total
13.1%
Change from 2016
-2.1pp
484
13.1%
-2.1pp
35 to 39
2021 count
347
% of total
9.4%
Change from 2016
+0.1pp
347
9.4%
+0.1pp
40 to 44
2021 count
243
% of total
6.6%
Change from 2016
-0.2pp
243
6.6%
-0.2pp
45 to 49
2021 count
233
% of total
6.3%
Change from 2016
+0.3pp
233
6.3%
+0.3pp
50 to 54
2021 count
221
% of total
6.0%
Change from 2016
+1.3pp
221
6.0%
+1.3pp
55 to 59
2021 count
162
% of total
4.4%
Change from 2016
-0.2pp
162
4.4%
-0.2pp
60 to 64
2021 count
150
% of total
4.1%
Change from 2016
+0.3pp
150
4.1%
+0.3pp
65 to 69
2021 count
137
% of total
3.7%
Change from 2016
0.0pp
137
3.7%
0.0pp
70 to 74
2021 count
124
% of total
3.4%
Change from 2016
+1.6pp
124
3.4%
+1.6pp
75 to 79
2021 count
72
% of total
2.0%
Change from 2016
+0.1pp
72
2.0%
+0.1pp
80 to 84
2021 count
64
% of total
1.7%
Change from 2016
+0.3pp
64
1.7%
+0.3pp
85 and over
2021 count
135
% of total
3.7%
Change from 2016
+2.0pp
135
3.7%
+2.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+40
+0.4pp
5 to 9
-22
-1.2pp
10 to 14
+38
+0.7pp
15 to 19
-11
-0.9pp
20 to 24
+8
-1.0pp
25 to 29
+11
-1.9pp
30 to 34
+5
-2.1pp
35 to 39
+54
+0.1pp
40 to 44
+27
-0.2pp
45 to 49
+43
+0.3pp
50 to 54
+72
+1.3pp
55 to 59
+17
-0.2pp
60 to 64
+31
+0.3pp
65 to 69
+20
0.0pp
70 to 74
+67
+1.6pp
75 to 79
+13
+0.1pp
80 to 84
+21
+0.3pp
85 and over
+80
+2.0pp
Data table
Five year age groups for Leederville. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Vincent (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Vincent (C)% | Count | % | Vincent (C)% | Count | pp | |
| 0 to 4 | 188 | 5.1% | 5.2% | 148 | 4.7% | 5.5% | +40 | +0.4pp |
| 5 to 9 | 110 | 3.0% | 4.7% | 132 | 4.2% | 5.0% | -22 | -1.2pp |
| 10 to 14 | 128 | 3.5% | 4.4% | 90 | 2.8% | 3.6% | +38 | +0.7pp |
| 15 to 19 | 139 | 3.8% | 3.5% | 150 | 4.7% | 3.6% | -11 | -0.9pp |
| 20 to 24 | 267 | 7.2% | 7.0% | 259 | 8.2% | 7.4% | +8 | -1.0pp |
| 25 to 29 | 494 | 13.4% | 11.2% | 483 | 15.3% | 13.0% | +11 | -1.9pp |
| 30 to 34 | 484 | 13.1% | 11.5% | 479 | 15.2% | 12.6% | +5 | -2.1pp |
| 35 to 39 | 347 | 9.4% | 9.8% | 293 | 9.3% | 9.0% | +54 | +0.1pp |
| 40 to 44 | 243 | 6.6% | 7.5% | 216 | 6.8% | 7.2% | +27 | -0.2pp |
| 45 to 49 | 233 | 6.3% | 6.5% | 190 | 6.0% | 6.7% | +43 | +0.3pp |
| 50 to 54 | 221 | 6.0% | 6.3% | 149 | 4.7% | 5.9% | +72 | +1.3pp |
| 55 to 59 | 162 | 4.4% | 5.7% | 145 | 4.6% | 5.4% | +17 | -0.2pp |
| 60 to 64 | 150 | 4.1% | 4.9% | 119 | 3.8% | 4.3% | +31 | +0.3pp |
| 65 to 69 | 137 | 3.7% | 3.8% | 117 | 3.7% | 3.5% | +20 | 0.0pp |
| 70 to 74 | 124 | 3.4% | 3.0% | 57 | 1.8% | 2.1% | +67 | +1.6pp |
| 75 to 79 | 72 | 2.0% | 1.8% | 59 | 1.9% | 1.8% | +13 | +0.1pp |
| 80 to 84 | 64 | 1.7% | 1.4% | 43 | 1.4% | 1.4% | +21 | +0.3pp |
| 85 and over | 135 | 3.7% | 1.8% | 55 | 1.7% | 2.0% | +80 | +2.0pp |
| Total | 3,686 | 100.0% | 100.0% | 3,158 | 100.0% | 100.0% | +528 | 0.0pp |