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, 10 to 14 year olds was the largest age group among residents in Willyung, accounting for 10.2% (65 people). This share was higher than Albany (C) (6.7%). Since 2016, the biggest change was in 10 to 14 year olds, which increased by 17 people and 1.9 percentage points.
Section overview
Age structure - Five year age groups
Willyung - Total persons (Usual residence)
This table summarises five year age groups for Willyung in 2021 for persons, with comparison against Albany (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Willyung, with comparison markers for Albany (C).
0 to 4
2021 count
26
% of total
4.1%
Change from 2016
-2.5pp
26
4.1%
-2.5pp
5 to 9
2021 count
38
% of total
6.0%
Change from 2016
-3.6pp
38
6.0%
-3.6pp
10 to 14
2021 count
65
% of total
10.2%
Change from 2016
+1.9pp
65
10.2%
+1.9pp
15 to 19
2021 count
47
% of total
7.4%
Change from 2016
+1.5pp
47
7.4%
+1.5pp
20 to 24
2021 count
21
% of total
3.3%
Change from 2016
+0.9pp
21
3.3%
+0.9pp
25 to 29
2021 count
27
% of total
4.3%
Change from 2016
+1.5pp
27
4.3%
+1.5pp
30 to 34
2021 count
28
% of total
4.4%
Change from 2016
-1.5pp
28
4.4%
-1.5pp
35 to 39
2021 count
36
% of total
5.7%
Change from 2016
-1.1pp
36
5.7%
-1.1pp
40 to 44
2021 count
49
% of total
7.7%
Change from 2016
+0.7pp
49
7.7%
+0.7pp
45 to 49
2021 count
43
% of total
6.8%
Change from 2016
-2.6pp
43
6.8%
-2.6pp
50 to 54
2021 count
54
% of total
8.5%
Change from 2016
+1.5pp
54
8.5%
+1.5pp
55 to 59
2021 count
50
% of total
7.9%
Change from 2016
+0.4pp
50
7.9%
+0.4pp
60 to 64
2021 count
46
% of total
7.2%
Change from 2016
+0.1pp
46
7.2%
+0.1pp
65 to 69
2021 count
52
% of total
8.2%
Change from 2016
+0.7pp
52
8.2%
+0.7pp
70 to 74
2021 count
32
% of total
5.0%
Change from 2016
+1.9pp
32
5.0%
+1.9pp
75 to 79
2021 count
18
% of total
2.8%
Change from 2016
+1.8pp
18
2.8%
+1.8pp
80 to 84
2021 count
3
% of total
0.5%
Change from 2016
0.0pp
3
0.5%
0.0pp
85 and over
2021 count
10
% of total
1.6%
Change from 2016
+1.1pp
10
1.6%
+1.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-12
-2.5pp
5 to 9
-17
-3.6pp
10 to 14
+17
+1.9pp
15 to 19
+13
+1.5pp
20 to 24
+7
+0.9pp
25 to 29
+11
+1.5pp
30 to 34
-6
-1.5pp
35 to 39
-3
-1.1pp
40 to 44
+9
+0.7pp
45 to 49
-11
-2.6pp
50 to 54
+14
+1.5pp
55 to 59
+7
+0.4pp
60 to 64
+5
+0.1pp
65 to 69
+9
+0.7pp
70 to 74
+14
+1.9pp
75 to 79
+12
+1.8pp
80 to 84
0
0.0pp
85 and over
+7
+1.1pp
Data table
Five year age groups for Willyung. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Albany (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Albany (C)% | Count | % | Albany (C)% | Count | pp | |
| 0 to 4 | 26 | 4.1% | 5.0% | 38 | 6.6% | 5.4% | -12 | -2.5pp |
| 5 to 9 | 38 | 6.0% | 5.9% | 55 | 9.6% | 6.3% | -17 | -3.6pp |
| 10 to 14 | 65 | 10.2% | 6.7% | 48 | 8.3% | 6.9% | +17 | +1.9pp |
| 15 to 19 | 47 | 7.4% | 6.2% | 34 | 5.9% | 6.6% | +13 | +1.5pp |
| 20 to 24 | 21 | 3.3% | 4.4% | 14 | 2.4% | 4.8% | +7 | +0.9pp |
| 25 to 29 | 27 | 4.3% | 5.1% | 16 | 2.8% | 5.3% | +11 | +1.5pp |
| 30 to 34 | 28 | 4.4% | 5.6% | 34 | 5.9% | 5.3% | -6 | -1.5pp |
| 35 to 39 | 36 | 5.7% | 5.4% | 39 | 6.8% | 5.4% | -3 | -1.1pp |
| 40 to 44 | 49 | 7.7% | 5.5% | 40 | 7.0% | 6.1% | +9 | +0.7pp |
| 45 to 49 | 43 | 6.8% | 6.2% | 54 | 9.4% | 6.8% | -11 | -2.6pp |
| 50 to 54 | 54 | 8.5% | 6.6% | 40 | 7.0% | 6.7% | +14 | +1.5pp |
| 55 to 59 | 50 | 7.9% | 6.8% | 43 | 7.5% | 7.2% | +7 | +0.4pp |
| 60 to 64 | 46 | 7.2% | 7.2% | 41 | 7.1% | 6.8% | +5 | +0.1pp |
| 65 to 69 | 52 | 8.2% | 6.7% | 43 | 7.5% | 6.5% | +9 | +0.7pp |
| 70 to 74 | 32 | 5.0% | 6.2% | 18 | 3.1% | 4.8% | +14 | +1.9pp |
| 75 to 79 | 18 | 2.8% | 4.3% | 6 | 1.0% | 3.7% | +12 | +1.8pp |
| 80 to 84 | 3 | 0.5% | 3.1% | 3 | 0.5% | 2.7% | 0 | 0.0pp |
| 85 and over | 10 | 1.6% | 3.0% | 3 | 0.5% | 2.9% | +7 | +1.1pp |
| Total | 635 | 100.0% | 100.0% | 575 | 100.0% | 100.0% | +60 | 0.0pp |