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, 60 to 64 year olds was the largest age group among residents in Mount Melville, accounting for 8.8% (89 people). This share was higher than Albany (C) (7.2%). Since 2016, the biggest change was in 20 to 24 year olds, which decreased by 41 people and 3.4 percentage points.
Section overview
Age structure - Five year age groups
Mount Melville - Total persons (Usual residence)
This table summarises five year age groups for Mount Melville 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 Mount Melville, with comparison markers for Albany (C).
0 to 4
2021 count
40
% of total
4.0%
Change from 2016
-0.5pp
40
4.0%
-0.5pp
5 to 9
2021 count
56
% of total
5.6%
Change from 2016
+0.4pp
56
5.6%
+0.4pp
10 to 14
2021 count
45
% of total
4.5%
Change from 2016
-0.3pp
45
4.5%
-0.3pp
15 to 19
2021 count
42
% of total
4.2%
Change from 2016
-0.5pp
42
4.2%
-0.5pp
20 to 24
2021 count
41
% of total
4.1%
Change from 2016
-3.4pp
41
4.1%
-3.4pp
25 to 29
2021 count
48
% of total
4.8%
Change from 2016
-2.1pp
48
4.8%
-2.1pp
30 to 34
2021 count
72
% of total
7.1%
Change from 2016
+1.5pp
72
7.1%
+1.5pp
35 to 39
2021 count
60
% of total
6.0%
Change from 2016
+0.3pp
60
6.0%
+0.3pp
40 to 44
2021 count
52
% of total
5.2%
Change from 2016
-1.9pp
52
5.2%
-1.9pp
45 to 49
2021 count
70
% of total
7.0%
Change from 2016
+0.6pp
70
7.0%
+0.6pp
50 to 54
2021 count
77
% of total
7.6%
Change from 2016
+1.8pp
77
7.6%
+1.8pp
55 to 59
2021 count
85
% of total
8.4%
Change from 2016
+1.2pp
85
8.4%
+1.2pp
60 to 64
2021 count
89
% of total
8.8%
Change from 2016
-0.3pp
89
8.8%
-0.3pp
65 to 69
2021 count
81
% of total
8.0%
Change from 2016
+1.6pp
81
8.0%
+1.6pp
70 to 74
2021 count
67
% of total
6.7%
Change from 2016
+3.4pp
67
6.7%
+3.4pp
75 to 79
2021 count
43
% of total
4.3%
Change from 2016
+1.3pp
43
4.3%
+1.3pp
80 to 84
2021 count
20
% of total
2.0%
Change from 2016
-0.1pp
20
2.0%
-0.1pp
85 and over
2021 count
13
% of total
1.3%
Change from 2016
-1.1pp
13
1.3%
-1.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-9
-0.5pp
5 to 9
-1
+0.4pp
10 to 14
-8
-0.3pp
15 to 19
-10
-0.5pp
20 to 24
-41
-3.4pp
25 to 29
-28
-2.1pp
30 to 34
+11
+1.5pp
35 to 39
-2
+0.3pp
40 to 44
-26
-1.9pp
45 to 49
0
+0.6pp
50 to 54
+13
+1.8pp
55 to 59
+6
+1.2pp
60 to 64
-11
-0.3pp
65 to 69
+11
+1.6pp
70 to 74
+31
+3.4pp
75 to 79
+10
+1.3pp
80 to 84
-3
-0.1pp
85 and over
-13
-1.1pp
Data table
Five year age groups for Mount Melville. 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 | 40 | 4.0% | 5.0% | 49 | 4.5% | 5.4% | -9 | -0.5pp |
| 5 to 9 | 56 | 5.6% | 5.9% | 57 | 5.2% | 6.3% | -1 | +0.4pp |
| 10 to 14 | 45 | 4.5% | 6.7% | 53 | 4.8% | 6.9% | -8 | -0.3pp |
| 15 to 19 | 42 | 4.2% | 6.2% | 52 | 4.7% | 6.6% | -10 | -0.5pp |
| 20 to 24 | 41 | 4.1% | 4.4% | 82 | 7.5% | 4.8% | -41 | -3.4pp |
| 25 to 29 | 48 | 4.8% | 5.1% | 76 | 6.9% | 5.3% | -28 | -2.1pp |
| 30 to 34 | 72 | 7.1% | 5.6% | 61 | 5.6% | 5.3% | +11 | +1.5pp |
| 35 to 39 | 60 | 6.0% | 5.4% | 62 | 5.7% | 5.4% | -2 | +0.3pp |
| 40 to 44 | 52 | 5.2% | 5.5% | 78 | 7.1% | 6.1% | -26 | -1.9pp |
| 45 to 49 | 70 | 7.0% | 6.2% | 70 | 6.4% | 6.8% | 0 | +0.6pp |
| 50 to 54 | 77 | 7.6% | 6.6% | 64 | 5.8% | 6.7% | +13 | +1.8pp |
| 55 to 59 | 85 | 8.4% | 6.8% | 79 | 7.2% | 7.2% | +6 | +1.2pp |
| 60 to 64 | 89 | 8.8% | 7.2% | 100 | 9.1% | 6.8% | -11 | -0.3pp |
| 65 to 69 | 81 | 8.0% | 6.7% | 70 | 6.4% | 6.5% | +11 | +1.6pp |
| 70 to 74 | 67 | 6.7% | 6.2% | 36 | 3.3% | 4.8% | +31 | +3.4pp |
| 75 to 79 | 43 | 4.3% | 4.3% | 33 | 3.0% | 3.7% | +10 | +1.3pp |
| 80 to 84 | 20 | 2.0% | 3.1% | 23 | 2.1% | 2.7% | -3 | -0.1pp |
| 85 and over | 13 | 1.3% | 3.0% | 26 | 2.4% | 2.9% | -13 | -1.1pp |
| Total | 1,007 | 100.0% | 100.0% | 1,097 | 100.0% | 100.0% | -90 | 0.0pp |