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, 35 to 39 year olds was the largest age group among residents in Warradale, accounting for 7.4% (430 people). This share was similar to Marion (C) (7.5%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 430 people and 7.4 percentage points.
Section overview
Age structure - Five year age groups
Warradale - Total persons (Usual residence)
This table summarises five year age groups for Warradale 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 Warradale, with comparison markers for Marion (C).
0 to 4
2021 count
284
% of total
4.9%
Change from 2016
+4.9pp
284
4.9%
+4.9pp
5 to 9
2021 count
359
% of total
6.2%
Change from 2016
+6.2pp
359
6.2%
+6.2pp
10 to 14
2021 count
337
% of total
5.8%
Change from 2016
+5.8pp
337
5.8%
+5.8pp
15 to 19
2021 count
313
% of total
5.4%
Change from 2016
+5.4pp
313
5.4%
+5.4pp
20 to 24
2021 count
284
% of total
4.9%
Change from 2016
+4.9pp
284
4.9%
+4.9pp
25 to 29
2021 count
381
% of total
6.6%
Change from 2016
+6.6pp
381
6.6%
+6.6pp
30 to 34
2021 count
379
% of total
6.5%
Change from 2016
+6.5pp
379
6.5%
+6.5pp
35 to 39
2021 count
430
% of total
7.4%
Change from 2016
+7.4pp
430
7.4%
+7.4pp
40 to 44
2021 count
395
% of total
6.8%
Change from 2016
-9.0pp
395
6.8%
-9.0pp
45 to 49
2021 count
376
% of total
6.5%
Change from 2016
+6.5pp
376
6.5%
+6.5pp
50 to 54
2021 count
325
% of total
5.6%
Change from 2016
+5.6pp
325
5.6%
+5.6pp
55 to 59
2021 count
308
% of total
5.3%
Change from 2016
+5.3pp
308
5.3%
+5.3pp
60 to 64
2021 count
388
% of total
6.7%
Change from 2016
-9.1pp
388
6.7%
-9.1pp
65 to 69
2021 count
343
% of total
5.9%
Change from 2016
+5.9pp
343
5.9%
+5.9pp
70 to 74
2021 count
346
% of total
6.0%
Change from 2016
+6.0pp
346
6.0%
+6.0pp
75 to 79
2021 count
220
% of total
3.8%
Change from 2016
+3.8pp
220
3.8%
+3.8pp
80 to 84
2021 count
157
% of total
2.7%
Change from 2016
+2.7pp
157
2.7%
+2.7pp
85 and over
2021 count
186
% of total
3.2%
Change from 2016
+3.2pp
186
3.2%
+3.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+284
+4.9pp
5 to 9
+359
+6.2pp
10 to 14
+337
+5.8pp
15 to 19
+313
+5.4pp
20 to 24
+284
+4.9pp
25 to 29
+381
+6.6pp
30 to 34
+379
+6.5pp
35 to 39
+430
+7.4pp
40 to 44
+392
-9.0pp
45 to 49
+376
+6.5pp
50 to 54
+325
+5.6pp
55 to 59
+308
+5.3pp
60 to 64
+385
-9.1pp
65 to 69
+343
+5.9pp
70 to 74
+346
+6.0pp
75 to 79
+220
+3.8pp
80 to 84
+157
+2.7pp
85 and over
+186
+3.2pp
Data table
Five year age groups for Warradale. 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 | 284 | 4.9% | 5.4% | 0 | 0.0% | 5.9% | +284 | +4.9pp |
| 5 to 9 | 359 | 6.2% | 5.6% | 0 | 0.0% | 5.4% | +359 | +6.2pp |
| 10 to 14 | 337 | 5.8% | 5.2% | 0 | 0.0% | 4.9% | +337 | +5.8pp |
| 15 to 19 | 313 | 5.4% | 5.1% | 0 | 0.0% | 5.7% | +313 | +5.4pp |
| 20 to 24 | 284 | 4.9% | 6.7% | 0 | 0.0% | 7.2% | +284 | +4.9pp |
| 25 to 29 | 381 | 6.6% | 7.4% | 0 | 0.0% | 7.3% | +381 | +6.6pp |
| 30 to 34 | 379 | 6.5% | 7.7% | 0 | 0.0% | 7.5% | +379 | +6.5pp |
| 35 to 39 | 430 | 7.4% | 7.5% | 0 | 0.0% | 6.8% | +430 | +7.4pp |
| 40 to 44 | 395 | 6.8% | 6.6% | 3 | 15.8% | 6.4% | +392 | -9.0pp |
| 45 to 49 | 376 | 6.5% | 6.1% | 0 | 0.0% | 6.3% | +376 | +6.5pp |
| 50 to 54 | 325 | 5.6% | 5.9% | 0 | 0.0% | 6.4% | +325 | +5.6pp |
| 55 to 59 | 308 | 5.3% | 5.9% | 0 | 0.0% | 6.6% | +308 | +5.3pp |
| 60 to 64 | 388 | 6.7% | 6.1% | 3 | 15.8% | 6.2% | +385 | -9.1pp |
| 65 to 69 | 343 | 5.9% | 5.7% | 0 | 0.0% | 5.2% | +343 | +5.9pp |
| 70 to 74 | 346 | 6.0% | 4.8% | 0 | 0.0% | 3.7% | +346 | +6.0pp |
| 75 to 79 | 220 | 3.8% | 3.3% | 0 | 0.0% | 2.9% | +220 | +3.8pp |
| 80 to 84 | 157 | 2.7% | 2.3% | 0 | 0.0% | 2.4% | +157 | +2.7pp |
| 85 and over | 186 | 3.2% | 2.9% | 0 | 0.0% | 3.1% | +186 | +3.2pp |
| Total | 5,801 | 100.0% | 100.0% | 19 | 100.0% | 100.0% | +5,782 | 0.0pp |