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 St James (WA) (part), accounting for 12.5% (610 people). This share was higher than Canning (C) (8%). Since 2016, the biggest change was in 20 to 24 year olds, which decreased by 84 people and 1.8 percentage points.
Section overview
Age structure - Five year age groups
St James (WA) (part) - Total persons (Usual residence)
This table summarises five year age groups for St James (WA) (part) 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 St James (WA) (part), with comparison markers for Canning (C).
0 to 4
2021 count
290
% of total
5.9%
Change from 2016
-0.6pp
290
5.9%
-0.6pp
5 to 9
2021 count
238
% of total
4.9%
Change from 2016
-0.2pp
238
4.9%
-0.2pp
10 to 14
2021 count
199
% of total
4.1%
Change from 2016
+0.1pp
199
4.1%
+0.1pp
15 to 19
2021 count
245
% of total
5.0%
Change from 2016
+0.3pp
245
5.0%
+0.3pp
20 to 24
2021 count
512
% of total
10.5%
Change from 2016
-1.8pp
512
10.5%
-1.8pp
25 to 29
2021 count
610
% of total
12.5%
Change from 2016
-0.7pp
610
12.5%
-0.7pp
30 to 34
2021 count
590
% of total
12.1%
Change from 2016
+1.6pp
590
12.1%
+1.6pp
35 to 39
2021 count
395
% of total
8.1%
Change from 2016
-0.2pp
395
8.1%
-0.2pp
40 to 44
2021 count
332
% of total
6.8%
Change from 2016
+0.5pp
332
6.8%
+0.5pp
45 to 49
2021 count
315
% of total
6.4%
Change from 2016
+0.7pp
315
6.4%
+0.7pp
50 to 54
2021 count
240
% of total
4.9%
Change from 2016
-1.0pp
240
4.9%
-1.0pp
55 to 59
2021 count
249
% of total
5.1%
Change from 2016
+0.7pp
249
5.1%
+0.7pp
60 to 64
2021 count
209
% of total
4.3%
Change from 2016
+0.5pp
209
4.3%
+0.5pp
65 to 69
2021 count
163
% of total
3.3%
Change from 2016
+0.2pp
163
3.3%
+0.2pp
70 to 74
2021 count
125
% of total
2.6%
Change from 2016
+0.6pp
125
2.6%
+0.6pp
75 to 79
2021 count
56
% of total
1.1%
Change from 2016
-0.1pp
56
1.1%
-0.1pp
80 to 84
2021 count
48
% of total
1.0%
Change from 2016
-0.5pp
48
1.0%
-0.5pp
85 and over
2021 count
58
% of total
1.2%
Change from 2016
-1.0pp
58
1.2%
-1.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-24
-0.6pp
5 to 9
-10
-0.2pp
10 to 14
+8
+0.1pp
15 to 19
+18
+0.3pp
20 to 24
-84
-1.8pp
25 to 29
-29
-0.7pp
30 to 34
+82
+1.6pp
35 to 39
-5
-0.2pp
40 to 44
+28
+0.5pp
45 to 49
+41
+0.7pp
50 to 54
-43
-1.0pp
55 to 59
+36
+0.7pp
60 to 64
+26
+0.5pp
65 to 69
+15
+0.2pp
70 to 74
+30
+0.6pp
75 to 79
-4
-0.1pp
80 to 84
-25
-0.5pp
85 and over
-47
-1.0pp
Data table
Five year age groups for St James (WA) (part). 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 | 290 | 5.9% | 5.5% | 314 | 6.5% | 5.6% | -24 | -0.6pp |
| 5 to 9 | 238 | 4.9% | 6.1% | 248 | 5.1% | 6.0% | -10 | -0.2pp |
| 10 to 14 | 199 | 4.1% | 6.5% | 191 | 4.0% | 5.9% | +8 | +0.1pp |
| 15 to 19 | 245 | 5.0% | 6.2% | 227 | 4.7% | 6.9% | +18 | +0.3pp |
| 20 to 24 | 512 | 10.5% | 8.1% | 596 | 12.3% | 9.2% | -84 | -1.8pp |
| 25 to 29 | 610 | 12.5% | 8.0% | 639 | 13.2% | 8.6% | -29 | -0.7pp |
| 30 to 34 | 590 | 12.1% | 7.6% | 508 | 10.5% | 7.9% | +82 | +1.6pp |
| 35 to 39 | 395 | 8.1% | 7.6% | 400 | 8.3% | 6.9% | -5 | -0.2pp |
| 40 to 44 | 332 | 6.8% | 7.1% | 304 | 6.3% | 6.6% | +28 | +0.5pp |
| 45 to 49 | 315 | 6.4% | 6.4% | 274 | 5.7% | 6.5% | +41 | +0.7pp |
| 50 to 54 | 240 | 4.9% | 5.8% | 283 | 5.9% | 6.0% | -43 | -1.0pp |
| 55 to 59 | 249 | 5.1% | 5.4% | 213 | 4.4% | 5.6% | +36 | +0.7pp |
| 60 to 64 | 209 | 4.3% | 5.1% | 183 | 3.8% | 5.1% | +26 | +0.5pp |
| 65 to 69 | 163 | 3.3% | 4.5% | 148 | 3.1% | 4.5% | +15 | +0.2pp |
| 70 to 74 | 125 | 2.6% | 3.9% | 95 | 2.0% | 3.1% | +30 | +0.6pp |
| 75 to 79 | 56 | 1.1% | 2.7% | 60 | 1.2% | 2.3% | -4 | -0.1pp |
| 80 to 84 | 48 | 1.0% | 1.8% | 73 | 1.5% | 1.6% | -25 | -0.5pp |
| 85 and over | 58 | 1.2% | 1.7% | 105 | 2.2% | 1.7% | -47 | -1.0pp |
| Total | 4,894 | 100.0% | 100.0% | 4,839 | 100.0% | 100.0% | +55 | 0.0pp |