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 Clarendon (SA), accounting for 10.6% (68 people). This share was higher than Onkaparinga (C) (6.3%). Since 2016, the biggest change was in 60 to 64 year olds, which increased by 68 people and 10.6 percentage points.
Section overview
Age structure - Five year age groups
Clarendon (SA) - Total persons (Usual residence)
This table summarises five year age groups for Clarendon (SA) in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Clarendon (SA), with comparison markers for Onkaparinga (C).
0 to 4
2021 count
21
% of total
3.3%
Change from 2016
+3.3pp
21
3.3%
+3.3pp
5 to 9
2021 count
30
% of total
4.7%
Change from 2016
+4.7pp
30
4.7%
+4.7pp
10 to 14
2021 count
45
% of total
7.0%
Change from 2016
+7.0pp
45
7.0%
+7.0pp
15 to 19
2021 count
44
% of total
6.8%
Change from 2016
+6.8pp
44
6.8%
+6.8pp
20 to 24
2021 count
41
% of total
6.4%
Change from 2016
+6.4pp
41
6.4%
+6.4pp
25 to 29
2021 count
10
% of total
1.6%
Change from 2016
+1.6pp
10
1.6%
+1.6pp
30 to 34
2021 count
25
% of total
3.9%
Change from 2016
+3.9pp
25
3.9%
+3.9pp
35 to 39
2021 count
28
% of total
4.4%
Change from 2016
+4.4pp
28
4.4%
+4.4pp
40 to 44
2021 count
41
% of total
6.4%
Change from 2016
+6.4pp
41
6.4%
+6.4pp
45 to 49
2021 count
37
% of total
5.8%
Change from 2016
-19.2pp
37
5.8%
-19.2pp
50 to 54
2021 count
56
% of total
8.7%
Change from 2016
+8.7pp
56
8.7%
+8.7pp
55 to 59
2021 count
43
% of total
6.7%
Change from 2016
+6.7pp
43
6.7%
+6.7pp
60 to 64
2021 count
68
% of total
10.6%
Change from 2016
+10.6pp
68
10.6%
+10.6pp
65 to 69
2021 count
29
% of total
4.5%
Change from 2016
+4.5pp
29
4.5%
+4.5pp
70 to 74
2021 count
34
% of total
5.3%
Change from 2016
+5.3pp
34
5.3%
+5.3pp
75 to 79
2021 count
37
% of total
5.8%
Change from 2016
+5.8pp
37
5.8%
+5.8pp
80 to 84
2021 count
8
% of total
1.2%
Change from 2016
+1.2pp
8
1.2%
+1.2pp
85 and over
2021 count
3
% of total
0.5%
Change from 2016
+0.5pp
3
0.5%
+0.5pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+21
+3.3pp
5 to 9
+30
+4.7pp
10 to 14
+45
+7.0pp
15 to 19
+44
+6.8pp
20 to 24
+41
+6.4pp
25 to 29
+10
+1.6pp
30 to 34
+25
+3.9pp
35 to 39
+28
+4.4pp
40 to 44
+41
+6.4pp
45 to 49
+34
-19.2pp
50 to 54
+56
+8.7pp
55 to 59
+43
+6.7pp
60 to 64
+68
+10.6pp
65 to 69
+29
+4.5pp
70 to 74
+34
+5.3pp
75 to 79
+37
+5.8pp
80 to 84
+8
+1.2pp
85 and over
+3
+0.5pp
Data table
Five year age groups for Clarendon (SA). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Onkaparinga (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Onkaparinga (C)% | Count | % | Onkaparinga (C)% | Count | pp | |
| 0 to 4 | 21 | 3.3% | 5.4% | 0 | 0.0% | 6.2% | +21 | +3.3pp |
| 5 to 9 | 30 | 4.7% | 6.2% | 0 | 0.0% | 6.4% | +30 | +4.7pp |
| 10 to 14 | 45 | 7.0% | 6.2% | 0 | 0.0% | 6.1% | +45 | +7.0pp |
| 15 to 19 | 44 | 6.8% | 5.8% | 0 | 0.0% | 6.2% | +44 | +6.8pp |
| 20 to 24 | 41 | 6.4% | 5.6% | 0 | 0.0% | 6.0% | +41 | +6.4pp |
| 25 to 29 | 10 | 1.6% | 6.0% | 0 | 0.0% | 5.9% | +10 | +1.6pp |
| 30 to 34 | 25 | 3.9% | 6.3% | 0 | 0.0% | 6.5% | +25 | +3.9pp |
| 35 to 39 | 28 | 4.4% | 6.7% | 0 | 0.0% | 6.3% | +28 | +4.4pp |
| 40 to 44 | 41 | 6.4% | 6.1% | 0 | 0.0% | 6.6% | +41 | +6.4pp |
| 45 to 49 | 37 | 5.8% | 6.4% | 3 | 25.0% | 6.9% | +34 | -19.2pp |
| 50 to 54 | 56 | 8.7% | 6.6% | 0 | 0.0% | 6.7% | +56 | +8.7pp |
| 55 to 59 | 43 | 6.7% | 6.5% | 0 | 0.0% | 6.6% | +43 | +6.7pp |
| 60 to 64 | 68 | 10.6% | 6.3% | 0 | 0.0% | 6.3% | +68 | +10.6pp |
| 65 to 69 | 29 | 4.5% | 5.9% | 0 | 0.0% | 6.1% | +29 | +4.5pp |
| 70 to 74 | 34 | 5.3% | 5.7% | 0 | 0.0% | 4.3% | +34 | +5.3pp |
| 75 to 79 | 37 | 5.8% | 3.8% | 0 | 0.0% | 2.8% | +37 | +5.8pp |
| 80 to 84 | 8 | 1.2% | 2.3% | 0 | 0.0% | 2.0% | +8 | +1.2pp |
| 85 and over | 3 | 0.5% | 2.2% | 0 | 0.0% | 2.1% | +3 | +0.5pp |
| Total | 643 | 100.0% | 100.0% | 12 | 100.0% | 100.0% | +631 | 0.0pp |