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, 30 to 34 year olds was the largest age group among residents in Sturt (SA), accounting for 9% (252 people). This share was higher than Marion (C) (7.7%). Since 2016, the biggest change was in 30 to 34 year olds, which increased by 61 people and 1.5 percentage points.
Section overview
Age structure - Five year age groups
Sturt (SA) - Total persons (Usual residence)
This table summarises five year age groups for Sturt (SA) in 2021 for persons, with comparison against Marion (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Sturt (SA), with comparison markers for Marion (C).
0 to 4
2021 count
156
% of total
5.6%
Change from 2016
+0.3pp
156
5.6%
+0.3pp
5 to 9
2021 count
152
% of total
5.5%
Change from 2016
+1.4pp
152
5.5%
+1.4pp
10 to 14
2021 count
126
% of total
4.5%
Change from 2016
+0.8pp
126
4.5%
+0.8pp
15 to 19
2021 count
111
% of total
4.0%
Change from 2016
-1.9pp
111
4.0%
-1.9pp
20 to 24
2021 count
213
% of total
7.6%
Change from 2016
-0.5pp
213
7.6%
-0.5pp
25 to 29
2021 count
236
% of total
8.5%
Change from 2016
-1.4pp
236
8.5%
-1.4pp
30 to 34
2021 count
252
% of total
9.0%
Change from 2016
+1.5pp
252
9.0%
+1.5pp
35 to 39
2021 count
208
% of total
7.5%
Change from 2016
+0.3pp
208
7.5%
+0.3pp
40 to 44
2021 count
178
% of total
6.4%
Change from 2016
+1.5pp
178
6.4%
+1.5pp
45 to 49
2021 count
154
% of total
5.5%
Change from 2016
+0.7pp
154
5.5%
+0.7pp
50 to 54
2021 count
146
% of total
5.2%
Change from 2016
-0.8pp
146
5.2%
-0.8pp
55 to 59
2021 count
151
% of total
5.4%
Change from 2016
-0.8pp
151
5.4%
-0.8pp
60 to 64
2021 count
143
% of total
5.1%
Change from 2016
-0.7pp
143
5.1%
-0.7pp
65 to 69
2021 count
176
% of total
6.3%
Change from 2016
+0.5pp
176
6.3%
+0.5pp
70 to 74
2021 count
149
% of total
5.3%
Change from 2016
+0.3pp
149
5.3%
+0.3pp
75 to 79
2021 count
107
% of total
3.8%
Change from 2016
-0.1pp
107
3.8%
-0.1pp
80 to 84
2021 count
81
% of total
2.9%
Change from 2016
-0.4pp
81
2.9%
-0.4pp
85 and over
2021 count
76
% of total
2.7%
Change from 2016
-0.4pp
76
2.7%
-0.4pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+22
+0.3pp
5 to 9
+49
+1.4pp
10 to 14
+33
+0.8pp
15 to 19
-38
-1.9pp
20 to 24
+7
-0.5pp
25 to 29
-14
-1.4pp
30 to 34
+61
+1.5pp
35 to 39
+27
+0.3pp
40 to 44
+54
+1.5pp
45 to 49
+32
+0.7pp
50 to 54
-5
-0.8pp
55 to 59
-5
-0.8pp
60 to 64
-3
-0.7pp
65 to 69
+30
+0.5pp
70 to 74
+23
+0.3pp
75 to 79
+8
-0.1pp
80 to 84
-3
-0.4pp
85 and over
-3
-0.4pp
Data table
Five year age groups for Sturt (SA). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Marion (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Marion (C)% | Count | % | Marion (C)% | Count | pp | |
| 0 to 4 | 156 | 5.6% | 5.4% | 134 | 5.3% | 5.9% | +22 | +0.3pp |
| 5 to 9 | 152 | 5.5% | 5.6% | 103 | 4.1% | 5.4% | +49 | +1.4pp |
| 10 to 14 | 126 | 4.5% | 5.2% | 93 | 3.7% | 4.9% | +33 | +0.8pp |
| 15 to 19 | 111 | 4.0% | 5.1% | 149 | 5.9% | 5.7% | -38 | -1.9pp |
| 20 to 24 | 213 | 7.6% | 6.7% | 206 | 8.1% | 7.2% | +7 | -0.5pp |
| 25 to 29 | 236 | 8.5% | 7.4% | 250 | 9.9% | 7.3% | -14 | -1.4pp |
| 30 to 34 | 252 | 9.0% | 7.7% | 191 | 7.5% | 7.5% | +61 | +1.5pp |
| 35 to 39 | 208 | 7.5% | 7.5% | 181 | 7.2% | 6.8% | +27 | +0.3pp |
| 40 to 44 | 178 | 6.4% | 6.6% | 124 | 4.9% | 6.4% | +54 | +1.5pp |
| 45 to 49 | 154 | 5.5% | 6.1% | 122 | 4.8% | 6.3% | +32 | +0.7pp |
| 50 to 54 | 146 | 5.2% | 5.9% | 151 | 6.0% | 6.4% | -5 | -0.8pp |
| 55 to 59 | 151 | 5.4% | 5.9% | 156 | 6.2% | 6.6% | -5 | -0.8pp |
| 60 to 64 | 143 | 5.1% | 6.1% | 146 | 5.8% | 6.2% | -3 | -0.7pp |
| 65 to 69 | 176 | 6.3% | 5.7% | 146 | 5.8% | 5.2% | +30 | +0.5pp |
| 70 to 74 | 149 | 5.3% | 4.8% | 126 | 5.0% | 3.7% | +23 | +0.3pp |
| 75 to 79 | 107 | 3.8% | 3.3% | 99 | 3.9% | 2.9% | +8 | -0.1pp |
| 80 to 84 | 81 | 2.9% | 2.3% | 84 | 3.3% | 2.4% | -3 | -0.4pp |
| 85 and over | 76 | 2.7% | 2.9% | 79 | 3.1% | 3.1% | -3 | -0.4pp |
| Total | 2,787 | 100.0% | 100.0% | 2,531 | 100.0% | 100.0% | +256 | 0.0pp |