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 Unley Park, accounting for 8.5% (117 people). This share was higher than Unley (C) (6.1%). Since 2016, the biggest change was in 5 to 9 year olds, which decreased by 37 people and 2.4 percentage points.
Section overview
Age structure - Five year age groups
Unley Park - Total persons (Usual residence)
This table summarises five year age groups for Unley Park in 2021 for persons, with comparison against Unley (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Unley Park, with comparison markers for Unley (C).
0 to 4
2021 count
47
% of total
3.4%
Change from 2016
-0.4pp
47
3.4%
-0.4pp
5 to 9
2021 count
62
% of total
4.5%
Change from 2016
-2.4pp
62
4.5%
-2.4pp
10 to 14
2021 count
79
% of total
5.7%
Change from 2016
-2.1pp
79
5.7%
-2.1pp
15 to 19
2021 count
114
% of total
8.2%
Change from 2016
+0.7pp
114
8.2%
+0.7pp
20 to 24
2021 count
88
% of total
6.4%
Change from 2016
-0.4pp
88
6.4%
-0.4pp
25 to 29
2021 count
48
% of total
3.5%
Change from 2016
-1.8pp
48
3.5%
-1.8pp
30 to 34
2021 count
68
% of total
4.9%
Change from 2016
+0.8pp
68
4.9%
+0.8pp
35 to 39
2021 count
50
% of total
3.6%
Change from 2016
-0.1pp
50
3.6%
-0.1pp
40 to 44
2021 count
71
% of total
5.1%
Change from 2016
-0.9pp
71
5.1%
-0.9pp
45 to 49
2021 count
93
% of total
6.7%
Change from 2016
-0.8pp
93
6.7%
-0.8pp
50 to 54
2021 count
110
% of total
8.0%
Change from 2016
-0.2pp
110
8.0%
-0.2pp
55 to 59
2021 count
111
% of total
8.0%
Change from 2016
+0.9pp
111
8.0%
+0.9pp
60 to 64
2021 count
117
% of total
8.5%
Change from 2016
+1.7pp
117
8.5%
+1.7pp
65 to 69
2021 count
83
% of total
6.0%
Change from 2016
-2.2pp
83
6.0%
-2.2pp
70 to 74
2021 count
101
% of total
7.3%
Change from 2016
+2.2pp
101
7.3%
+2.2pp
75 to 79
2021 count
74
% of total
5.4%
Change from 2016
+1.8pp
74
5.4%
+1.8pp
80 to 84
2021 count
47
% of total
3.4%
Change from 2016
+1.8pp
47
3.4%
+1.8pp
85 and over
2021 count
36
% of total
2.6%
Change from 2016
+0.8pp
36
2.6%
+0.8pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-8
-0.4pp
5 to 9
-37
-2.4pp
10 to 14
-34
-2.1pp
15 to 19
+6
+0.7pp
20 to 24
-10
-0.4pp
25 to 29
-29
-1.8pp
30 to 34
+9
+0.8pp
35 to 39
-4
-0.1pp
40 to 44
-15
-0.9pp
45 to 49
-15
-0.8pp
50 to 54
-9
-0.2pp
55 to 59
+8
+0.9pp
60 to 64
+19
+1.7pp
65 to 69
-35
-2.2pp
70 to 74
+27
+2.2pp
75 to 79
+22
+1.8pp
80 to 84
+24
+1.8pp
85 and over
+10
+0.8pp
Data table
Five year age groups for Unley Park. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Unley (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Unley (C)% | Count | % | Unley (C)% | Count | pp | |
| 0 to 4 | 47 | 3.4% | 4.3% | 55 | 3.8% | 4.7% | -8 | -0.4pp |
| 5 to 9 | 62 | 4.5% | 5.3% | 99 | 6.9% | 5.7% | -37 | -2.4pp |
| 10 to 14 | 79 | 5.7% | 5.8% | 113 | 7.8% | 5.5% | -34 | -2.1pp |
| 15 to 19 | 114 | 8.2% | 5.4% | 108 | 7.5% | 5.8% | +6 | +0.7pp |
| 20 to 24 | 88 | 6.4% | 6.2% | 98 | 6.8% | 6.8% | -10 | -0.4pp |
| 25 to 29 | 48 | 3.5% | 6.3% | 77 | 5.3% | 7.0% | -29 | -1.8pp |
| 30 to 34 | 68 | 4.9% | 6.1% | 59 | 4.1% | 6.6% | +9 | +0.8pp |
| 35 to 39 | 50 | 3.6% | 6.4% | 54 | 3.7% | 6.4% | -4 | -0.1pp |
| 40 to 44 | 71 | 5.1% | 6.6% | 86 | 6.0% | 6.7% | -15 | -0.9pp |
| 45 to 49 | 93 | 6.7% | 6.6% | 108 | 7.5% | 6.7% | -15 | -0.8pp |
| 50 to 54 | 110 | 8.0% | 6.6% | 119 | 8.2% | 6.4% | -9 | -0.2pp |
| 55 to 59 | 111 | 8.0% | 6.0% | 103 | 7.1% | 6.3% | +8 | +0.9pp |
| 60 to 64 | 117 | 8.5% | 6.1% | 98 | 6.8% | 6.3% | +19 | +1.7pp |
| 65 to 69 | 83 | 6.0% | 5.8% | 118 | 8.2% | 5.6% | -35 | -2.2pp |
| 70 to 74 | 101 | 7.3% | 5.5% | 74 | 5.1% | 3.9% | +27 | +2.2pp |
| 75 to 79 | 74 | 5.4% | 3.8% | 52 | 3.6% | 3.0% | +22 | +1.8pp |
| 80 to 84 | 47 | 3.4% | 2.9% | 23 | 1.6% | 2.3% | +24 | +1.8pp |
| 85 and over | 36 | 2.6% | 4.1% | 26 | 1.8% | 4.3% | +10 | +0.8pp |
| Total | 1,383 | 100.0% | 100.0% | 1,445 | 100.0% | 100.0% | -62 | 0.0pp |