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, 30 to 34 year olds was the largest age group among residents in Glenroy (Vic.), accounting for 11.2% (2,657 people). This share was similar to Moreland (C) (11.1%). Since 2016, the biggest change was in 30 to 34 year olds, which increased by 2,648 people and 8.1 percentage points.
Section overview
Age structure - Five year age groups
Glenroy (Vic.) - Total persons (Usual residence)
This table summarises five year age groups for Glenroy (Vic.) in 2021 for persons, with comparison against Moreland (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Glenroy (Vic.), with comparison markers for Moreland (C).
0 to 4
2021 count
1,746
% of total
7.3%
Change from 2016
+5.9pp
1,746
7.3%
+5.9pp
5 to 9
2021 count
1,332
% of total
5.6%
Change from 2016
+3.2pp
1,332
5.6%
+3.2pp
10 to 14
2021 count
1,091
% of total
4.6%
Change from 2016
+3.6pp
1,091
4.6%
+3.6pp
15 to 19
2021 count
970
% of total
4.1%
Change from 2016
+3.1pp
970
4.1%
+3.1pp
20 to 24
2021 count
1,877
% of total
7.9%
Change from 2016
+7.9pp
1,877
7.9%
+7.9pp
25 to 29
2021 count
2,578
% of total
10.8%
Change from 2016
+9.1pp
2,578
10.8%
+9.1pp
30 to 34
2021 count
2,657
% of total
11.2%
Change from 2016
+8.1pp
2,657
11.2%
+8.1pp
35 to 39
2021 count
2,152
% of total
9.0%
Change from 2016
+5.9pp
2,152
9.0%
+5.9pp
40 to 44
2021 count
1,536
% of total
6.5%
Change from 2016
+0.4pp
1,536
6.5%
+0.4pp
45 to 49
2021 count
1,250
% of total
5.3%
Change from 2016
-2.2pp
1,250
5.3%
-2.2pp
50 to 54
2021 count
1,177
% of total
4.9%
Change from 2016
-4.0pp
1,177
4.9%
-4.0pp
55 to 59
2021 count
1,156
% of total
4.9%
Change from 2016
-4.3pp
1,156
4.9%
-4.3pp
60 to 64
2021 count
913
% of total
3.8%
Change from 2016
-8.8pp
913
3.8%
-8.8pp
65 to 69
2021 count
726
% of total
3.1%
Change from 2016
-18.4pp
726
3.1%
-18.4pp
70 to 74
2021 count
651
% of total
2.7%
Change from 2016
-6.2pp
651
2.7%
-6.2pp
75 to 79
2021 count
591
% of total
2.5%
Change from 2016
-1.9pp
591
2.5%
-1.9pp
80 to 84
2021 count
564
% of total
2.4%
Change from 2016
-0.3pp
564
2.4%
-0.3pp
85 and over
2021 count
837
% of total
3.5%
Change from 2016
+3.5pp
837
3.5%
+3.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+1,742
+5.9pp
5 to 9
+1,325
+3.2pp
10 to 14
+1,088
+3.6pp
15 to 19
+967
+3.1pp
20 to 24
+1,877
+7.9pp
25 to 29
+2,573
+9.1pp
30 to 34
+2,648
+8.1pp
35 to 39
+2,143
+5.9pp
40 to 44
+1,518
+0.4pp
45 to 49
+1,228
-2.2pp
50 to 54
+1,151
-4.0pp
55 to 59
+1,129
-4.3pp
60 to 64
+876
-8.8pp
65 to 69
+663
-18.4pp
70 to 74
+625
-6.2pp
75 to 79
+578
-1.9pp
80 to 84
+556
-0.3pp
85 and over
+837
+3.5pp
Data table
Five year age groups for Glenroy (Vic.). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Moreland (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Moreland (C)% | Count | % | Moreland (C)% | Count | pp | |
| 0 to 4 | 1,746 | 7.3% | 5.7% | 4 | 1.4% | 6.3% | +1,742 | +5.9pp |
| 5 to 9 | 1,332 | 5.6% | 5.2% | 7 | 2.4% | 5.4% | +1,325 | +3.2pp |
| 10 to 14 | 1,091 | 4.6% | 4.6% | 3 | 1.0% | 4.4% | +1,088 | +3.6pp |
| 15 to 19 | 970 | 4.1% | 4.2% | 3 | 1.0% | 4.4% | +967 | +3.1pp |
| 20 to 24 | 1,877 | 7.9% | 7.3% | 0 | 0.0% | 7.9% | +1,877 | +7.9pp |
| 25 to 29 | 2,578 | 10.8% | 10.5% | 5 | 1.7% | 11.0% | +2,573 | +9.1pp |
| 30 to 34 | 2,657 | 11.2% | 11.1% | 9 | 3.1% | 10.8% | +2,648 | +8.1pp |
| 35 to 39 | 2,152 | 9.0% | 9.5% | 9 | 3.1% | 8.7% | +2,143 | +5.9pp |
| 40 to 44 | 1,536 | 6.5% | 7.2% | 18 | 6.1% | 7.1% | +1,518 | +0.4pp |
| 45 to 49 | 1,250 | 5.3% | 6.3% | 22 | 7.5% | 6.3% | +1,228 | -2.2pp |
| 50 to 54 | 1,177 | 4.9% | 5.8% | 26 | 8.9% | 5.5% | +1,151 | -4.0pp |
| 55 to 59 | 1,156 | 4.9% | 5.0% | 27 | 9.2% | 4.7% | +1,129 | -4.3pp |
| 60 to 64 | 913 | 3.8% | 4.2% | 37 | 12.6% | 3.8% | +876 | -8.8pp |
| 65 to 69 | 726 | 3.1% | 3.3% | 63 | 21.5% | 3.3% | +663 | -18.4pp |
| 70 to 74 | 651 | 2.7% | 2.8% | 26 | 8.9% | 2.6% | +625 | -6.2pp |
| 75 to 79 | 591 | 2.5% | 2.2% | 13 | 4.4% | 2.8% | +578 | -1.9pp |
| 80 to 84 | 564 | 2.4% | 2.2% | 8 | 2.7% | 2.4% | +556 | -0.3pp |
| 85 and over | 837 | 3.5% | 2.7% | 0 | 0.0% | 2.7% | +837 | +3.5pp |
| Total | 23,792 | 100.0% | 100.0% | 293 | 100.0% | 100.0% | +23,499 | 0.0pp |