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 Windsor (Vic.) (part), accounting for 18.3% (1,330 people). This share was higher than Stonnington (C) (12%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 104 people and 1.4 percentage points.
Section overview
Age structure - Five year age groups
Windsor (Vic.) (part) - Total persons (Usual residence)
This table summarises five year age groups for Windsor (Vic.) (part) 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 Windsor (Vic.) (part), with comparison markers for Stonnington (C).
0 to 4
2021 count
203
% of total
2.8%
Change from 2016
-0.7pp
203
2.8%
-0.7pp
5 to 9
2021 count
127
% of total
1.7%
Change from 2016
-0.5pp
127
1.7%
-0.5pp
10 to 14
2021 count
136
% of total
1.9%
Change from 2016
-0.2pp
136
1.9%
-0.2pp
15 to 19
2021 count
177
% of total
2.4%
Change from 2016
+0.1pp
177
2.4%
+0.1pp
20 to 24
2021 count
600
% of total
8.2%
Change from 2016
-0.1pp
600
8.2%
-0.1pp
25 to 29
2021 count
1,330
% of total
18.3%
Change from 2016
+0.3pp
1,330
18.3%
+0.3pp
30 to 34
2021 count
1,133
% of total
15.6%
Change from 2016
-1.3pp
1,133
15.6%
-1.3pp
35 to 39
2021 count
746
% of total
10.3%
Change from 2016
+1.4pp
746
10.3%
+1.4pp
40 to 44
2021 count
454
% of total
6.2%
Change from 2016
+0.3pp
454
6.2%
+0.3pp
45 to 49
2021 count
404
% of total
5.6%
Change from 2016
+0.5pp
404
5.6%
+0.5pp
50 to 54
2021 count
356
% of total
4.9%
Change from 2016
+0.7pp
356
4.9%
+0.7pp
55 to 59
2021 count
320
% of total
4.4%
Change from 2016
+0.6pp
320
4.4%
+0.6pp
60 to 64
2021 count
273
% of total
3.8%
Change from 2016
+0.1pp
273
3.8%
+0.1pp
65 to 69
2021 count
252
% of total
3.5%
Change from 2016
+0.4pp
252
3.5%
+0.4pp
70 to 74
2021 count
194
% of total
2.7%
Change from 2016
+0.3pp
194
2.7%
+0.3pp
75 to 79
2021 count
183
% of total
2.5%
Change from 2016
-0.1pp
183
2.5%
-0.1pp
80 to 84
2021 count
167
% of total
2.3%
Change from 2016
-0.3pp
167
2.3%
-0.3pp
85 and over
2021 count
220
% of total
3.0%
Change from 2016
-1.4pp
220
3.0%
-1.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-49
-0.7pp
5 to 9
-33
-0.5pp
10 to 14
-19
-0.2pp
15 to 19
+9
+0.1pp
20 to 24
-1
-0.1pp
25 to 29
+29
+0.3pp
30 to 34
-87
-1.3pp
35 to 39
+104
+1.4pp
40 to 44
+26
+0.3pp
45 to 49
+34
+0.5pp
50 to 54
+50
+0.7pp
55 to 59
+43
+0.6pp
60 to 64
+8
+0.1pp
65 to 69
+27
+0.4pp
70 to 74
+21
+0.3pp
75 to 79
-2
-0.1pp
80 to 84
-24
-0.3pp
85 and over
-100
-1.4pp
Data table
Five year age groups for Windsor (Vic.) (part). 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 | 203 | 2.8% | 3.8% | 252 | 3.5% | 4.2% | -49 | -0.7pp |
| 5 to 9 | 127 | 1.7% | 3.7% | 160 | 2.2% | 4.1% | -33 | -0.5pp |
| 10 to 14 | 136 | 1.9% | 4.0% | 155 | 2.1% | 4.1% | -19 | -0.2pp |
| 15 to 19 | 177 | 2.4% | 4.4% | 168 | 2.3% | 4.5% | +9 | +0.1pp |
| 20 to 24 | 600 | 8.2% | 7.8% | 601 | 8.3% | 9.2% | -1 | -0.1pp |
| 25 to 29 | 1,330 | 18.3% | 12.0% | 1,301 | 18.0% | 12.8% | +29 | +0.3pp |
| 30 to 34 | 1,133 | 15.6% | 10.7% | 1,220 | 16.9% | 10.9% | -87 | -1.3pp |
| 35 to 39 | 746 | 10.3% | 8.3% | 642 | 8.9% | 7.4% | +104 | +1.4pp |
| 40 to 44 | 454 | 6.2% | 6.1% | 428 | 5.9% | 6.2% | +26 | +0.3pp |
| 45 to 49 | 404 | 5.6% | 5.9% | 370 | 5.1% | 6.2% | +34 | +0.5pp |
| 50 to 54 | 356 | 4.9% | 6.2% | 306 | 4.2% | 5.5% | +50 | +0.7pp |
| 55 to 59 | 320 | 4.4% | 5.3% | 277 | 3.8% | 5.1% | +43 | +0.6pp |
| 60 to 64 | 273 | 3.8% | 4.9% | 265 | 3.7% | 4.6% | +8 | +0.1pp |
| 65 to 69 | 252 | 3.5% | 4.4% | 225 | 3.1% | 4.4% | +27 | +0.4pp |
| 70 to 74 | 194 | 2.7% | 4.2% | 173 | 2.4% | 3.4% | +21 | +0.3pp |
| 75 to 79 | 183 | 2.5% | 3.3% | 185 | 2.6% | 2.9% | -2 | -0.1pp |
| 80 to 84 | 167 | 2.3% | 2.5% | 191 | 2.6% | 2.1% | -24 | -0.3pp |
| 85 and over | 220 | 3.0% | 2.6% | 320 | 4.4% | 2.4% | -100 | -1.4pp |
| Total | 7,273 | 100.0% | 100.0% | 7,235 | 100.0% | 100.0% | +38 | 0.0pp |