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 252 people and 9 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
+5.6pp
156
5.6%
+5.6pp
5 to 9
2021 count
152
% of total
5.5%
Change from 2016
+5.5pp
152
5.5%
+5.5pp
10 to 14
2021 count
126
% of total
4.5%
Change from 2016
+4.5pp
126
4.5%
+4.5pp
15 to 19
2021 count
111
% of total
4.0%
Change from 2016
+4.0pp
111
4.0%
+4.0pp
20 to 24
2021 count
213
% of total
7.6%
Change from 2016
+7.6pp
213
7.6%
+7.6pp
25 to 29
2021 count
236
% of total
8.5%
Change from 2016
+8.5pp
236
8.5%
+8.5pp
30 to 34
2021 count
252
% of total
9.0%
Change from 2016
+9.0pp
252
9.0%
+9.0pp
35 to 39
2021 count
208
% of total
7.5%
Change from 2016
+7.5pp
208
7.5%
+7.5pp
40 to 44
2021 count
178
% of total
6.4%
Change from 2016
+6.4pp
178
6.4%
+6.4pp
45 to 49
2021 count
154
% of total
5.5%
Change from 2016
+5.5pp
154
5.5%
+5.5pp
50 to 54
2021 count
146
% of total
5.2%
Change from 2016
-9.1pp
146
5.2%
-9.1pp
55 to 59
2021 count
151
% of total
5.4%
Change from 2016
-8.9pp
151
5.4%
-8.9pp
60 to 64
2021 count
143
% of total
5.1%
Change from 2016
+5.1pp
143
5.1%
+5.1pp
65 to 69
2021 count
176
% of total
6.3%
Change from 2016
+6.3pp
176
6.3%
+6.3pp
70 to 74
2021 count
149
% of total
5.3%
Change from 2016
+5.3pp
149
5.3%
+5.3pp
75 to 79
2021 count
107
% of total
3.8%
Change from 2016
+3.8pp
107
3.8%
+3.8pp
80 to 84
2021 count
81
% of total
2.9%
Change from 2016
+2.9pp
81
2.9%
+2.9pp
85 and over
2021 count
76
% of total
2.7%
Change from 2016
+2.7pp
76
2.7%
+2.7pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+156
+5.6pp
5 to 9
+152
+5.5pp
10 to 14
+126
+4.5pp
15 to 19
+111
+4.0pp
20 to 24
+213
+7.6pp
25 to 29
+236
+8.5pp
30 to 34
+252
+9.0pp
35 to 39
+208
+7.5pp
40 to 44
+178
+6.4pp
45 to 49
+154
+5.5pp
50 to 54
+143
-9.1pp
55 to 59
+148
-8.9pp
60 to 64
+143
+5.1pp
65 to 69
+176
+6.3pp
70 to 74
+149
+5.3pp
75 to 79
+107
+3.8pp
80 to 84
+81
+2.9pp
85 and over
+76
+2.7pp
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% | 0 | 0.0% | 5.9% | +156 | +5.6pp |
| 5 to 9 | 152 | 5.5% | 5.6% | 0 | 0.0% | 5.4% | +152 | +5.5pp |
| 10 to 14 | 126 | 4.5% | 5.2% | 0 | 0.0% | 4.9% | +126 | +4.5pp |
| 15 to 19 | 111 | 4.0% | 5.1% | 0 | 0.0% | 5.7% | +111 | +4.0pp |
| 20 to 24 | 213 | 7.6% | 6.7% | 0 | 0.0% | 7.2% | +213 | +7.6pp |
| 25 to 29 | 236 | 8.5% | 7.4% | 0 | 0.0% | 7.3% | +236 | +8.5pp |
| 30 to 34 | 252 | 9.0% | 7.7% | 0 | 0.0% | 7.5% | +252 | +9.0pp |
| 35 to 39 | 208 | 7.5% | 7.5% | 0 | 0.0% | 6.8% | +208 | +7.5pp |
| 40 to 44 | 178 | 6.4% | 6.6% | 0 | 0.0% | 6.4% | +178 | +6.4pp |
| 45 to 49 | 154 | 5.5% | 6.1% | 0 | 0.0% | 6.3% | +154 | +5.5pp |
| 50 to 54 | 146 | 5.2% | 5.9% | 3 | 14.3% | 6.4% | +143 | -9.1pp |
| 55 to 59 | 151 | 5.4% | 5.9% | 3 | 14.3% | 6.6% | +148 | -8.9pp |
| 60 to 64 | 143 | 5.1% | 6.1% | 0 | 0.0% | 6.2% | +143 | +5.1pp |
| 65 to 69 | 176 | 6.3% | 5.7% | 0 | 0.0% | 5.2% | +176 | +6.3pp |
| 70 to 74 | 149 | 5.3% | 4.8% | 0 | 0.0% | 3.7% | +149 | +5.3pp |
| 75 to 79 | 107 | 3.8% | 3.3% | 0 | 0.0% | 2.9% | +107 | +3.8pp |
| 80 to 84 | 81 | 2.9% | 2.3% | 0 | 0.0% | 2.4% | +81 | +2.9pp |
| 85 and over | 76 | 2.7% | 2.9% | 0 | 0.0% | 3.1% | +76 | +2.7pp |
| Total | 2,787 | 100.0% | 100.0% | 21 | 100.0% | 100.0% | +2,766 | 0.0pp |