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, 15 to 19 year olds was the largest age group among residents in Torrens Park, accounting for 8.4% (226 people). This share was higher than Mitcham (C) (6.4%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 74 people and 2.7 percentage points.
Section overview
Age structure - Five year age groups
Torrens Park - Total persons (Usual residence)
This table summarises five year age groups for Torrens Park in 2021 for persons, with comparison against Mitcham (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Torrens Park, with comparison markers for Mitcham (C).
0 to 4
2021 count
102
% of total
3.8%
Change from 2016
-1.1pp
102
3.8%
-1.1pp
5 to 9
2021 count
150
% of total
5.6%
Change from 2016
+0.2pp
150
5.6%
+0.2pp
10 to 14
2021 count
193
% of total
7.2%
Change from 2016
+0.8pp
193
7.2%
+0.8pp
15 to 19
2021 count
226
% of total
8.4%
Change from 2016
+0.1pp
226
8.4%
+0.1pp
20 to 24
2021 count
157
% of total
5.8%
Change from 2016
-1.0pp
157
5.8%
-1.0pp
25 to 29
2021 count
159
% of total
5.9%
Change from 2016
+0.3pp
159
5.9%
+0.3pp
30 to 34
2021 count
125
% of total
4.7%
Change from 2016
-1.1pp
125
4.7%
-1.1pp
35 to 39
2021 count
138
% of total
5.1%
Change from 2016
+0.7pp
138
5.1%
+0.7pp
40 to 44
2021 count
160
% of total
6.0%
Change from 2016
0.0pp
160
6.0%
0.0pp
45 to 49
2021 count
182
% of total
6.8%
Change from 2016
-0.2pp
182
6.8%
-0.2pp
50 to 54
2021 count
191
% of total
7.1%
Change from 2016
-0.7pp
191
7.1%
-0.7pp
55 to 59
2021 count
190
% of total
7.1%
Change from 2016
-1.6pp
190
7.1%
-1.6pp
60 to 64
2021 count
201
% of total
7.5%
Change from 2016
+1.1pp
201
7.5%
+1.1pp
65 to 69
2021 count
145
% of total
5.4%
Change from 2016
-1.1pp
145
5.4%
-1.1pp
70 to 74
2021 count
163
% of total
6.1%
Change from 2016
+2.7pp
163
6.1%
+2.7pp
75 to 79
2021 count
101
% of total
3.8%
Change from 2016
+0.9pp
101
3.8%
+0.9pp
80 to 84
2021 count
53
% of total
2.0%
Change from 2016
+0.3pp
53
2.0%
+0.3pp
85 and over
2021 count
51
% of total
1.9%
Change from 2016
-1.1pp
51
1.9%
-1.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-24
-1.1pp
5 to 9
+10
+0.2pp
10 to 14
+26
+0.8pp
15 to 19
+11
+0.1pp
20 to 24
-20
-1.0pp
25 to 29
+14
+0.3pp
30 to 34
-25
-1.1pp
35 to 39
+25
+0.7pp
40 to 44
+4
0.0pp
45 to 49
+1
-0.2pp
50 to 54
-12
-0.7pp
55 to 59
-35
-1.6pp
60 to 64
+35
+1.1pp
65 to 69
-24
-1.1pp
70 to 74
+74
+2.7pp
75 to 79
+26
+0.9pp
80 to 84
+9
+0.3pp
85 and over
-26
-1.1pp
Data table
Five year age groups for Torrens Park. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mitcham (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mitcham (C)% | Count | % | Mitcham (C)% | Count | pp | |
| 0 to 4 | 102 | 3.8% | 4.9% | 126 | 4.9% | 5.3% | -24 | -1.1pp |
| 5 to 9 | 150 | 5.6% | 6.0% | 140 | 5.4% | 6.2% | +10 | +0.2pp |
| 10 to 14 | 193 | 7.2% | 6.4% | 167 | 6.4% | 6.1% | +26 | +0.8pp |
| 15 to 19 | 226 | 8.4% | 6.4% | 215 | 8.3% | 6.6% | +11 | +0.1pp |
| 20 to 24 | 157 | 5.8% | 6.0% | 177 | 6.8% | 6.4% | -20 | -1.0pp |
| 25 to 29 | 159 | 5.9% | 5.1% | 145 | 5.6% | 5.1% | +14 | +0.3pp |
| 30 to 34 | 125 | 4.7% | 5.4% | 150 | 5.8% | 5.6% | -25 | -1.1pp |
| 35 to 39 | 138 | 5.1% | 6.2% | 113 | 4.4% | 6.0% | +25 | +0.7pp |
| 40 to 44 | 160 | 6.0% | 6.6% | 156 | 6.0% | 6.9% | +4 | 0.0pp |
| 45 to 49 | 182 | 6.8% | 7.1% | 181 | 7.0% | 7.1% | +1 | -0.2pp |
| 50 to 54 | 191 | 7.1% | 6.7% | 203 | 7.8% | 6.7% | -12 | -0.7pp |
| 55 to 59 | 190 | 7.1% | 6.2% | 225 | 8.7% | 6.7% | -35 | -1.6pp |
| 60 to 64 | 201 | 7.5% | 6.1% | 166 | 6.4% | 5.8% | +35 | +1.1pp |
| 65 to 69 | 145 | 5.4% | 5.4% | 169 | 6.5% | 5.7% | -24 | -1.1pp |
| 70 to 74 | 163 | 6.1% | 5.4% | 89 | 3.4% | 4.6% | +74 | +2.7pp |
| 75 to 79 | 101 | 3.8% | 4.1% | 75 | 2.9% | 3.4% | +26 | +0.9pp |
| 80 to 84 | 53 | 2.0% | 2.8% | 44 | 1.7% | 2.5% | +9 | +0.3pp |
| 85 and over | 51 | 1.9% | 3.3% | 77 | 3.0% | 3.4% | -26 | -1.1pp |
| Total | 2,687 | 100.0% | 100.0% | 2,596 | 100.0% | 100.0% | +91 | 0.0pp |