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, 45 to 49 year olds was the largest age group among residents in Malvern (Vic.), accounting for 7.1% (705 people). This share was higher than Stonnington (C) (5.9%). Since 2016, the biggest change was in 25 to 29 year olds, which decreased by 160 people and 1.5 percentage points.
Section overview
Age structure - Five year age groups
Malvern (Vic.) - Total persons (Usual residence)
This table summarises five year age groups for Malvern (Vic.) in 2021 for persons, with comparison against Stonnington (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Malvern (Vic.), with comparison markers for Stonnington (C).
0 to 4
2021 count
403
% of total
4.1%
Change from 2016
-1.0pp
403
4.1%
-1.0pp
5 to 9
2021 count
479
% of total
4.8%
Change from 2016
-1.3pp
479
4.8%
-1.3pp
10 to 14
2021 count
614
% of total
6.2%
Change from 2016
-0.2pp
614
6.2%
-0.2pp
15 to 19
2021 count
623
% of total
6.3%
Change from 2016
+0.9pp
623
6.3%
+0.9pp
20 to 24
2021 count
590
% of total
5.9%
Change from 2016
+0.1pp
590
5.9%
+0.1pp
25 to 29
2021 count
607
% of total
6.1%
Change from 2016
-1.5pp
607
6.1%
-1.5pp
30 to 34
2021 count
590
% of total
5.9%
Change from 2016
-0.5pp
590
5.9%
-0.5pp
35 to 39
2021 count
592
% of total
6.0%
Change from 2016
0.0pp
592
6.0%
0.0pp
40 to 44
2021 count
555
% of total
5.6%
Change from 2016
-1.3pp
555
5.6%
-1.3pp
45 to 49
2021 count
705
% of total
7.1%
Change from 2016
+0.3pp
705
7.1%
+0.3pp
50 to 54
2021 count
681
% of total
6.9%
Change from 2016
+0.7pp
681
6.9%
+0.7pp
55 to 59
2021 count
609
% of total
6.1%
Change from 2016
+0.3pp
609
6.1%
+0.3pp
60 to 64
2021 count
594
% of total
6.0%
Change from 2016
+0.6pp
594
6.0%
+0.6pp
65 to 69
2021 count
544
% of total
5.5%
Change from 2016
+0.4pp
544
5.5%
+0.4pp
70 to 74
2021 count
511
% of total
5.1%
Change from 2016
+0.6pp
511
5.1%
+0.6pp
75 to 79
2021 count
463
% of total
4.7%
Change from 2016
+0.7pp
463
4.7%
+0.7pp
80 to 84
2021 count
385
% of total
3.9%
Change from 2016
+0.9pp
385
3.9%
+0.9pp
85 and over
2021 count
382
% of total
3.8%
Change from 2016
+0.4pp
382
3.8%
+0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-111
-1.0pp
5 to 9
-137
-1.3pp
10 to 14
-28
-0.2pp
15 to 19
+81
+0.9pp
20 to 24
+4
+0.1pp
25 to 29
-160
-1.5pp
30 to 34
-54
-0.5pp
35 to 39
-13
0.0pp
40 to 44
-141
-1.3pp
45 to 49
+20
+0.3pp
50 to 54
+54
+0.7pp
55 to 59
+23
+0.3pp
60 to 64
+47
+0.6pp
65 to 69
+26
+0.4pp
70 to 74
+55
+0.6pp
75 to 79
+64
+0.7pp
80 to 84
+83
+0.9pp
85 and over
+36
+0.4pp
Data table
Five year age groups for Malvern (Vic.). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Stonnington (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Stonnington (C)% | Count | % | Stonnington (C)% | Count | pp | |
| 0 to 4 | 403 | 4.1% | 3.8% | 514 | 5.1% | 4.2% | -111 | -1.0pp |
| 5 to 9 | 479 | 4.8% | 3.7% | 616 | 6.1% | 4.1% | -137 | -1.3pp |
| 10 to 14 | 614 | 6.2% | 4.0% | 642 | 6.4% | 4.1% | -28 | -0.2pp |
| 15 to 19 | 623 | 6.3% | 4.4% | 542 | 5.4% | 4.5% | +81 | +0.9pp |
| 20 to 24 | 590 | 5.9% | 7.8% | 586 | 5.8% | 9.2% | +4 | +0.1pp |
| 25 to 29 | 607 | 6.1% | 12.0% | 767 | 7.6% | 12.8% | -160 | -1.5pp |
| 30 to 34 | 590 | 5.9% | 10.7% | 644 | 6.4% | 10.9% | -54 | -0.5pp |
| 35 to 39 | 592 | 6.0% | 8.3% | 605 | 6.0% | 7.4% | -13 | 0.0pp |
| 40 to 44 | 555 | 5.6% | 6.1% | 696 | 6.9% | 6.2% | -141 | -1.3pp |
| 45 to 49 | 705 | 7.1% | 5.9% | 685 | 6.8% | 6.2% | +20 | +0.3pp |
| 50 to 54 | 681 | 6.9% | 6.2% | 627 | 6.2% | 5.5% | +54 | +0.7pp |
| 55 to 59 | 609 | 6.1% | 5.3% | 586 | 5.8% | 5.1% | +23 | +0.3pp |
| 60 to 64 | 594 | 6.0% | 4.9% | 547 | 5.4% | 4.6% | +47 | +0.6pp |
| 65 to 69 | 544 | 5.5% | 4.4% | 518 | 5.1% | 4.4% | +26 | +0.4pp |
| 70 to 74 | 511 | 5.1% | 4.2% | 456 | 4.5% | 3.4% | +55 | +0.6pp |
| 75 to 79 | 463 | 4.7% | 3.3% | 399 | 4.0% | 2.9% | +64 | +0.7pp |
| 80 to 84 | 385 | 3.9% | 2.5% | 302 | 3.0% | 2.1% | +83 | +0.9pp |
| 85 and over | 382 | 3.8% | 2.6% | 346 | 3.4% | 2.4% | +36 | +0.4pp |
| Total | 9,929 | 100.0% | 100.0% | 10,078 | 100.0% | 100.0% | -149 | 0.0pp |