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, 40 to 44 year olds was the largest age group among residents in Avondale Heights, accounting for 6.7% (836 people). This share was lower than Moonee Valley (C) (6.9%). Since 2016, the biggest change was in 85 and over year olds, which increased by 217 people and 1.6 percentage points.
Section overview
Age structure - Five year age groups
Avondale Heights - Total persons (Usual residence)
This table summarises five year age groups for Avondale Heights in 2021 for persons, with comparison against Moonee Valley (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Avondale Heights, with comparison markers for Moonee Valley (C).
0 to 4
2021 count
626
% of total
5.1%
Change from 2016
-0.4pp
626
5.1%
-0.4pp
5 to 9
2021 count
714
% of total
5.8%
Change from 2016
+0.7pp
714
5.8%
+0.7pp
10 to 14
2021 count
629
% of total
5.1%
Change from 2016
+0.3pp
629
5.1%
+0.3pp
15 to 19
2021 count
577
% of total
4.7%
Change from 2016
0.0pp
577
4.7%
0.0pp
20 to 24
2021 count
600
% of total
4.8%
Change from 2016
-0.5pp
600
4.8%
-0.5pp
25 to 29
2021 count
631
% of total
5.1%
Change from 2016
-0.4pp
631
5.1%
-0.4pp
30 to 34
2021 count
740
% of total
6.0%
Change from 2016
-0.9pp
740
6.0%
-0.9pp
35 to 39
2021 count
818
% of total
6.6%
Change from 2016
+0.1pp
818
6.6%
+0.1pp
40 to 44
2021 count
836
% of total
6.7%
Change from 2016
+0.1pp
836
6.7%
+0.1pp
45 to 49
2021 count
759
% of total
6.1%
Change from 2016
-0.4pp
759
6.1%
-0.4pp
50 to 54
2021 count
757
% of total
6.1%
Change from 2016
+0.2pp
757
6.1%
+0.2pp
55 to 59
2021 count
685
% of total
5.5%
Change from 2016
-0.3pp
685
5.5%
-0.3pp
60 to 64
2021 count
685
% of total
5.5%
Change from 2016
+0.2pp
685
5.5%
+0.2pp
65 to 69
2021 count
662
% of total
5.3%
Change from 2016
-0.9pp
662
5.3%
-0.9pp
70 to 74
2021 count
763
% of total
6.2%
Change from 2016
+0.1pp
763
6.2%
+0.1pp
75 to 79
2021 count
710
% of total
5.7%
Change from 2016
+0.2pp
710
5.7%
+0.2pp
80 to 84
2021 count
578
% of total
4.7%
Change from 2016
+0.4pp
578
4.7%
+0.4pp
85 and over
2021 count
614
% of total
5.0%
Change from 2016
+1.6pp
614
5.0%
+1.6pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-14
-0.4pp
5 to 9
+123
+0.7pp
10 to 14
+70
+0.3pp
15 to 19
+29
0.0pp
20 to 24
-22
-0.5pp
25 to 29
-10
-0.4pp
30 to 34
-58
-0.9pp
35 to 39
+59
+0.1pp
40 to 44
+65
+0.1pp
45 to 49
-2
-0.4pp
50 to 54
+69
+0.2pp
55 to 59
+6
-0.3pp
60 to 64
+66
+0.2pp
65 to 69
-62
-0.9pp
70 to 74
+48
+0.1pp
75 to 79
+72
+0.2pp
80 to 84
+76
+0.4pp
85 and over
+217
+1.6pp
Data table
Five year age groups for Avondale Heights. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Moonee Valley (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Moonee Valley (C)% | Count | % | Moonee Valley (C)% | Count | pp | |
| 0 to 4 | 626 | 5.1% | 5.0% | 640 | 5.5% | 5.7% | -14 | -0.4pp |
| 5 to 9 | 714 | 5.8% | 5.5% | 591 | 5.1% | 5.7% | +123 | +0.7pp |
| 10 to 14 | 629 | 5.1% | 5.5% | 559 | 4.8% | 5.4% | +70 | +0.3pp |
| 15 to 19 | 577 | 4.7% | 5.3% | 548 | 4.7% | 5.4% | +29 | 0.0pp |
| 20 to 24 | 600 | 4.8% | 6.3% | 622 | 5.3% | 6.8% | -22 | -0.5pp |
| 25 to 29 | 631 | 5.1% | 7.4% | 641 | 5.5% | 7.9% | -10 | -0.4pp |
| 30 to 34 | 740 | 6.0% | 7.7% | 798 | 6.9% | 8.1% | -58 | -0.9pp |
| 35 to 39 | 818 | 6.6% | 7.5% | 759 | 6.5% | 7.1% | +59 | +0.1pp |
| 40 to 44 | 836 | 6.7% | 6.9% | 771 | 6.6% | 7.2% | +65 | +0.1pp |
| 45 to 49 | 759 | 6.1% | 6.9% | 761 | 6.5% | 7.3% | -2 | -0.4pp |
| 50 to 54 | 757 | 6.1% | 6.9% | 688 | 5.9% | 6.3% | +69 | +0.2pp |
| 55 to 59 | 685 | 5.5% | 6.0% | 679 | 5.8% | 5.9% | +6 | -0.3pp |
| 60 to 64 | 685 | 5.5% | 5.5% | 619 | 5.3% | 5.1% | +66 | +0.2pp |
| 65 to 69 | 662 | 5.3% | 4.7% | 724 | 6.2% | 4.5% | -62 | -0.9pp |
| 70 to 74 | 763 | 6.2% | 4.2% | 715 | 6.1% | 3.5% | +48 | +0.1pp |
| 75 to 79 | 710 | 5.7% | 3.2% | 638 | 5.5% | 3.1% | +72 | +0.2pp |
| 80 to 84 | 578 | 4.7% | 2.5% | 502 | 4.3% | 2.4% | +76 | +0.4pp |
| 85 and over | 614 | 5.0% | 2.7% | 397 | 3.4% | 2.5% | +217 | +1.6pp |
| Total | 12,388 | 100.0% | 100.0% | 11,633 | 100.0% | 100.0% | +755 | 0.0pp |